Relevant bibliographies by topics / Electron

Academic literature on the topic 'Electron'

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Published: 4 June 2021
Last updated: 28 July 2024

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Journal articles on the topic "Electron"

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DOLOCAN, ANDREI, VOICU OCTAVIAN DOLOCAN, and VOICU DOLOCAN. "SOME ASPECTS OF THE ELECTRON-BOSON INTERACTION AND OF THE ELECTRON-ELECTRON INTERACTION VIA BOSONS." Modern Physics Letters B 21, no. 01 (January 10, 2007): 25–36. http://dx.doi.org/10.1142/s0217984907012335.

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By using a Hamiltonian of interaction between fermions via bosons1 we derive some properties of the electro-phonon and electron-photon interaction and also of the electron-electron interaction. We have obtained that in a degenerate electron gas there is an attraction between two electrons via acoustical phonons. Also, in certain conditions, there may be an attraction between two electrons via longitudinal optical phonons. Although our expressions for the polaron energy in both cases of the acoustical and longitudinal optical phonons are different from that obtained in the standard theory, their magnitudes are the same with these and they are in good agreement with experimental data. The total emission rate of an electron against a phonon system at absolute zero is directly proportional to the electron momentum. Also, an attraction between two electrons may appear via photons.
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Dedulewich, S., Z. Kancleris, A. Matulis, and Yu Pozhela. "Electron-electron scattering in hot electrons." Semiconductor Science and Technology 7, no. 3B (March 1, 1992): B322—B323. http://dx.doi.org/10.1088/0268-1242/7/3b/081.

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Hauga, E. "Electron-electron bremsstrahlung for bound target electrons." European Physical Journal D 49, no. 2 (August 26, 2008): 193–99. http://dx.doi.org/10.1140/epjd/e2008-00156-5.

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Lee, Geon-Woo, Young-Bok Lee, Dong-Hyun Baek, Jung-Gon Kim, and Ho-Seob Kim. "Raman Scattering Study on the Influence of E-Beam Bombardment on Si Electron Lens." Molecules 26, no. 9 (May 8, 2021): 2766. http://dx.doi.org/10.3390/molecules26092766.

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Microcolumns have a stacked structure composed of an electron emitter, electron lens (source lens), einzel lens, and a deflector manufactured using a micro electro-mechanical system process. The electrons emitted from the tungsten field emitter mostly pass through the aperture holes. However, other electrons fail to pass through because of collisions around the aperture hole. We used Raman scattering measurements and X-ray photoelectron spectroscopy analyses to investigate the influence of electron beam bombardment on a Si electron lens irradiated by acceleration voltages of 0, 20, and 30 keV. We confirmed that the crystallinity was degraded, and carbon-related contamination was detected at the surface and edge of the aperture hole of the Si electron lens after electron bombardment for 24 h. Carbon-related contamination on the surface of the Si electron lens was verified by analyzing the Raman spectra of the carbon-deposited Si substrate using DC sputtering and a carbon rod sample. We report the crystallinity and the origin of the carbon-related contamination of electron Si lenses after electron beam bombardment by non-destructive Raman scattering and XPS analysis methods.
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Huang, Kai, Zhan Jin, Nobuhiko Nakanii, Tomonao Hosokai, and Masaki Kando. "Experimental demonstration of 7-femtosecond electron timing fluctuation in laser wakefield acceleration." Applied Physics Express 15, no. 3 (February 14, 2022): 036001. http://dx.doi.org/10.35848/1882-0786/ac5237.

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Abstract We report on an experimental investigation of the jitter of electrons from laser wakefield acceleration. The relative arrival timings of the generated electron bunches were detected via electro-optic spatial decoding on the coherent transition radiation emitted when the electrons pass through a 100 μm thick stainless steel foil. The standard deviation of electron timing was measured to be 7 fs at a position outside the plasma. Preliminary analysis suggested that the electron bunches might have durations of a few tens of femtoseconds. This research demonstrated the potential of laser wakefield acceleration for femtosecond pump–probe studies.
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Ram, Abhay K., Kyriakos Hizanidis, and Richard J. Temkin. "Current drive by high intensity, pulsed, electron cyclotron wave packets." EPJ Web of Conferences 203 (2019): 01009. http://dx.doi.org/10.1051/epjconf/201920301009.

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The nonlinear interaction of electrons with a high intensity, spatially localized, Gaussian, electro-magnetic wave packet, or beam, in the electron cyclotron range of frequencies is described by the relativistic Lorentz equation. There are two distinct sets of electrons that result from wave-particle interactions. One set of electrons is reflected by the ponderomotive force due to the spatial variation of the wave packet. The second set of electrons are energetic enough to traverse across the wave packet. Both sets of electrons can exchange energy and momentum with the wave packet. The trapping of electrons in plane waves, which are constituents of the Gaussian beam, leads to dynamics that is distinctly different from quasilinear modeling of wave-particle interactions. This paper illustrates the changes that occur in the electron motion as a result of the nonlinear interaction. The dynamical differences between electrons interacting with a wave packet composed of ordinary electromagnetic waves and electrons interacting with a wave packet composed of extraordinary waves are exemplified.
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Combescot, M. "Effect of electron-electron collisions on properties of hot electrons." Solid State Communications 65, no. 10 (March 1988): 1221–25. http://dx.doi.org/10.1016/0038-1098(88)90927-1.

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Boiko, I. I. "Influence of electron-electron drag on piezoresistance of n-Si." Semiconductor Physics Quantum Electronics and Optoelectronics 14, no. 2 (June 30, 2011): 183–87. http://dx.doi.org/10.15407/spqeo14.02.183.

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McMorran, Benjamin J., Peter Ercius, Tyler R. Harvey, Martin Linck, Colin Ophus, and Jordan Pierce. "Electron Microscopy with Structured Electrons." Microscopy and Microanalysis 23, S1 (July 2017): 448–49. http://dx.doi.org/10.1017/s1431927617002926.

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Suga, Hiroshi, Takafumi Fujiwara, Nobuhiro Kanai, and Masatoshi Kotera. "Secondary Electron Image Contrast in the Scanning Electron Microscope." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (August 12, 1990): 410–11. http://dx.doi.org/10.1017/s042482010018080x.

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An image contrast given in the scanning electron microscope(SEM) is due to differences in a detected number of secondary electrons (SE) coming from the specimen surface. The difference arises from the topographic, compositional and voltage features at the specimen surface. Two kinds of approaches have been taken for the quantification of SE images. One is to simulate electron trajectories in vacuum toward the detector, assuming the typical angular and energy distributions of electrons emitted from the specimen surface. However, the typical angular and energy distributions are not always applicable if a topographic or a compositional feature is present at the surface. The other is to simulate electron trajectory in the specimen. It is possible to obtain angular, energy, and spatial distributions of electrons emitted from the specimen surface. However, in order to discuss the SEM contrast based on these data, one has to assume that, for example, all slow electrons (<50eV) may be collected by the SE detector, or fast electrons ((>50eV) electrons may take a straight trajectory in the vacuum specimen chamber of the SEM. In a practical SEM picture of, for example, an etch-pit, different crystallographic plane surface shows different contrast even if the angle of the primary electron incidence toward all those surfaces is the same. This is because of the acceptance of the signal detection system. In a present study we combined two electron trajectory simulations mentioned above and calculated electron trajectories both in and out of the specimen, to simulate the trajectory from the point of the signal generated until the signal is detected.Although several simulation models of electron scatterings in a specimen have been reported to estimate the SE intensity at the surface, the model should be available to trace low energy (<50eV) electron trajectories. The model used here is basically the same as that reported in previous papers, and only a brief explanation is given in the following. Here, we made several assumptions as; [l]the energy loss of the primary and excited fast electrons is proportion to the number of SEs generated in the specimen, [2]the generated SE has an energy distribution as described by the Streitwolf equation, [3]the energy of the generated SEs are transferred to free electrons of the atom by the elastic-binary-collision, then one SE excited by the primary electron produces a ternary electron after the collision, and each one of the SE and the ternary electron produces higher order electrons in a cascade fashion. The simulation continues until the energy of each electron is less than the surface potential barrier. Angular and energy distributions and number of electrons emitted at the surface agree quite well with each experimental result in a typical case.
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Dissertations / Theses on the topic "Electron"

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Foley, Simon Timothy. "Effects of electron-electron interactions on electronic transport in disordered systems." Thesis, University of Birmingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273932.

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Tavener, P. "Electron spectroscopy of electrode materials." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370304.

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Keall, Paul J. "Electron transport in photon and election beam modelling /." Title page, contents and introduction only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phk24.pdf.

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Dogbe, John Kofi. "Comparing cluster and slab model geometries from density functional theory calculations of si(100)-2x1 surfaces using low-energy electron diffraction." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3258835.

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Sergueev, Nikolai. "Electron-phonon interactions in molecular electronic devices." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102171.

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Over the past several decades, semiconductor electronic devices have been miniaturized following the remarkable "Moores law". If this trend is to continue, devices will reach physical size limit in the not too distance future. There is therefore an urgent need to understand the physics of electronic devices at nano-meter scale, and to predict how such nanoelectronics will work. In nanoelectronics theory, one of the most important and difficult problems concerns electron-phonon interactions under nonequilibrium transport conditions. Calculating phonon spectrum, electron-phonon interaction, and their effects to charge transport for nanoelectronic devices including all atomic microscopic details, is a very difficult and unsolved problem. It is the purpose of this thesis to develop a theoretical formalism and associated numerical tools for solving this problem.
In our formalism, we calculate electronic Hamiltonian via density functional theory (DFT) within the nonequilibrium Green's functions (NEGF) which takes care of nonequilibrium transport conditions and open device boundaries for the devices. From the total energy of the device scattering region, we derive the dynamic matrix in analytical form within DFT-NEGF and it gives the vibrational spectrum of the relevant atoms. The vibrational spectrum together with the vibrational eigenvector gives the electron-phonon coupling strength at nonequilibrium for various scattering states. A self-consistent Born approximation (SCBA) allows one to determine the phonon self-energy, the electron Green's function, the electronic density matrix and the electronic Hamiltonian, all self-consistently within equal footing. The main technical development of this work is the DFT-NEGF-SCBA formalism and its associated codes.
A number of important physics issues are studied in this work. We start with a detailed analysis of transport properties of C60 molecular tunnel junction. We find that charge transport is mediated by resonances due to an alignment of the Fermi level of the electrodes and the lowest unoccupied C60 molecular orbital. We then make a first step toward the problem of analyzing phonon modes of the C60 by examining the rotational and the center-of-mass motions by calculating the total energy. We obtain the characteristic frequencies of the libration and the center-of-mass modes, the latter is quantitatively consistent with recent experimental measurements. Next, we developed a DFT-NEGF theory for the general purpose of calculating any vibrational modes in molecular tunnel junctions. We derive an analytical expression for dynamic matrix within the framework of DFT-NEGF. Diagonalizing the dynamic matrix we obtain the vibrational (phonon) spectrum of the device. Using this technique we calculate the vibrational spectrum of benzenedithiolate molecule in a tunnel junction and we investigate electron-phonon coupling under an applied bias voltage during current flow. We find that the electron-phonon coupling strength for this molecular device changes drastically as the bias voltage increases, due to dominant contributions from the center-of-mass vibrational modes of the molecule. Finally, we have investigated the reverse problem, namely the effect of molecular vibrations on the tunneling current. For this purpose we developed the DFT-NEGF-SCBA formalism, and an example is given illustrating the power of this formalism.
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Sica, G. "Electron-electron and electron-phonon interactions in strongly correlated systems." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/12194.

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In this work we investigate some aspects of the physics of strongly correlated systems by taking into account both electron-electron and electron-phonon interactions as basic mechanisms for reproducing electronic correlations in real materials. The relevance of the electron-electron interactions is discussed in the first part of this thesis in the framework of a self-consistent theoretical approach, named Composite Operator Method (COM), which accounts for the relevant quasi-particle excitations in terms of a set of composite operators that appear as a result of the modification imposed by the interactions on the canonical electronic fields. We show that the COM allows the calculation of all the relevant Green s and correlation functions in terms of a number of unknown internal parameters to be determined self-consistently. Therefore, depending on the balance between unknown parameters and self-consistent equations, exact and approximate solutions can be obtained. By way of example, we discuss the application of the COM to the extended t-U-J-h model in the atomic limit, and to the two-dimensional single-band Hubbard model. In the former case, we show that the COM provides the exact solution of the model in one dimension. We study the effects of electronic correlations as responsible for the formation of a plethora of different charge and/or spin orderings. We report the phase diagram of the model, as well as a detailed analysis of both zero and finite temperature single-particle and thermodynamic properties. As far as the single-band Hubbard model is concerned, we illustrate an approximated self-consistent scheme based on the choice of a two-field basis. We report a detailed analysis of many unconventional features that arise in single-particle properties, thermodynamics and system's response functions. We emphasize that the accuracy of the COM in describing the effects of electronic correlations strongly relies on the choice of the basis, paving the way for possible multi-pole extensions to the two-field theory. To this purpose, we also study a three-field approach to the single-band Hubbard model, showing a significant step forward in the agreements with numerical data with respect to the two-pole results. The role of the electron-phonon interaction in the physics of strongly correlated systems is discussed in the second part of this thesis. We show that in highly polarizable lattices the competition between unscreened Coulomb and Fröhlich interactions results in a short-range polaronic exchange term Jp that favours the formation of local and light pairs of bosonic nature, named bipolarons, which condense with a critical temperature well in excess of hundred kelvins. These findings, discussed in the framework of the so-called polaronic t-Jp model, are further investigated in the presence of a finite on-site potential U, coming from the competition between on-site Coulomb and Fröhlich interactions. We discuss the role of U as the driving parameter for a small-to-large bipolaron transition, providing a possible explanation of the BEC-BCS crossover in terms of the properties of the bipolaronic ground state. Finally, we show that a hard-core bipolarons gas, studied as a charged Bose-Fermi mixture, allows for the description of many non Fermi liquid behaviours, allowing also for a microscopic explanation of pseudogap features in terms of a thermal-induced recombination of polarons and bipolarons, without any assumption on preexisting order or broken symmetries.
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Sica, Gerardo. "Electron-electron and electron-phonon interactions in strongly correlated systems." Doctoral thesis, Universita degli studi di Salerno, 2013. http://hdl.handle.net/10556/1418.

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2011 - 2012
In this work we investigate some aspects of the physics of strongly correlated systems by taking into account both electron-electron and electron-phonon interactions as basic mechanisms for reproducing electronic correlations in real materials. The relevance of the electron-electron interactions is discussed in the first part of this thesis in the framework of a self-consistent theoretical approach, named Composite Operator Method (COM), which accounts for the relevant quasi-particle excitations in terms of a set of composite operators that appear as a result of the modification imposed by the interactions on the canonical electronic fields. We show that the COM allows the calculation of all the relevant Green’s and correlation functions in terms of a number of unknown internal parameters to be determined self-consistently. Therefore, depending on the balance between unknown parameters and self-consistent equations, exact and approximate solutions can be obtained. By way of example, we discuss the application of the COM to the extended t-U- J-h model in the atomic limit, and to the two-dimensional single-band Hubbard model. In the former case, we show that the COM provides the exact solution of the model in one dimension. We study the effects of electronic correlations as responsible for the formation of a plethora of different charge and/or spin orderings. We report the phase diagram of the model, as well as a detailed analysis of both zero and finite temperature single-particle and thermodynamic properties. As far as the single-band Hubbard model is concerned, we illustrate an approximated selfconsistent scheme based on the choice of a two-field basis. We report a detailed analysis of many unconventional features that arise in single-particle properties, thermodynamics and system’s response functions. We emphasize that the accuracy of the COM in describing the effects of electronic correlations strongly relies on the choice of the basis, paving the way for possible multi-pole extensions to the twofield theory. To this purpose, we also study a three-field approach to the single-band Hubbard model, showing a significant step forward in the agreements with numerical data with respect to the two-pole results. The role of the electron-phonon interaction in the physics of strongly correlated systems is discussed in the second part of this thesis. We show that in highly polarizable lattices the competition between unscreened Coulomb and Fröhlich interactions results in a short-range polaronic exchange term Jp that favours the formation of local and light pairs of bosonic nature, named bipolarons, which condense with a critical temperature well in excess of hundred kelvins. These findings, discussed in the framework of the so-called polaronic t-Jp model, are further investigated in the presence of a finite on-site potential ~U , coming from the competition between on-site Coulomb and Fröhlich interactions. We discuss the role of ~U as the driving parameter for a small-to-large bipolaron transition, providing a possible explanation of the BEC-BCS crossover in terms of the properties of the bipolaronic ground state. Finally, we show that a hard-core bipolarons gas, studied as a charged Bose-Fermi mixture, allows for the description of many non Fermi liquid behaviours, allowing also for a microscopic explanation of pseudogap features in terms of a thermal-induced recombination of polarons and bipolarons, without any assumption on preexisting order or broken symmetries. [edited by author]
XI n.s.
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Papageorgiou, George. "Counting electrons on helium using a single electron transistor." Thesis, Royal Holloway, University of London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415196.

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Phinney, Isabelle Y. "Probing electron-electron and electron-phonon interactions in twisted bilayer graphene." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127092.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Physics, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 81-86).
Two-dimensional systems, and, most recently, moire systems, have risen to the forefront of condensed matter physics with the advent of experimental techniques that allow for controlled stacking of van der Waals heterostructures [17, 54]. For example, it was recently discovered that when two pieces of atomically thin carbon (graphene) are twisted at 1.1° with respect to one another, they display a variety of effects, including superconducting behavior [10]. Experimental investigation of the behavior of small-angle twisted bilayer graphene (SA-TBG) as a function of twist angle is imperative to understanding the mechanisms that play into the many interesting, strongly-interacting phenomena that the moire system displays. In this thesis, I present three experiments which explore electron-electron and electron-phonon interactions in SA-TBG. I first consider SA-TBG as a host for a viscous electron fluid and look for the onset of fluid behavior via electron transport. Then I investigate the temperature dependence of resistivity in SA-TBG devices at a number of angles. The final experiment examines magnetophonons in three devices above the magic angle and compares the findings to theoretical results.
by Isabelle Y. Phinney.
S.B.
S.B. Massachusetts Institute of Technology, Department of Physics
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Kula, Mathias. "Understanding Electron Transport Properties of Molecular Electronic Devices." Doctoral thesis, KTH, Teoretisk kemi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4500.

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his thesis has been devoted to the study of underlying mechanisms for electron transport in molecular electronic devices. Not only has focus been on describing the elastic and inelastic electron transport processes with a Green's function based scattering theory approach, but also on how to construct computational models that are relevant to experimental systems. The thesis is essentially divided into two parts. While the rst part covers basic assumptions and the elastic transport properties, the second part covers the inelastic transport properties and its applications. It is discussed how di erent experimental approaches may give rise to di erent junction widths and thereby di erences in coupling strength between the bridging molecules and the contacts. This di erence in coupling strength is then directly related to the magnitude of the current that passes through the molecule and may thus explain observed di erences between di erent experiments. Another focus is the role of intermolecular interactions on the current-voltage (I-V) characteristics, where water molecules interacting with functional groups in a set of conjugated molecules are considered. This is interesting from several aspects; many experiments are performed under ambient conditions, which means that water molecules will be present and may interfere with the experiment. Another point is that many measurement are done on self-assembled monolayers, which raises the question of how such a measurement relates to that of a single molecule. By looking at the perturbations caused by the water molecules, one may get an understanding of what impact a neighboring molecule may have. The theoretical predictions show that intermolecular e ects may play a crucial role and is related to the functional groups, which has to be taken into consideration when looking at experimental data. In the second part, the inelastic contribution to the total current is shown to be quite small and its real importance lies in probing the device geometry. Several molecules are studied for which experimental data is available for comparison. It is demonstrated that the IETS is very sensitive to the molecular conformation, contact geometry and junction width. It is also found that some of the spectral features that appear in experiment cannot be attributed to the molecular device, but to the background contributions, which shows how theory may be used to complement experiment. This part concludes with a study of the temperature dependence of the inelastic transport. This is very important not only from a theoretical point of view, but also for the experiments since it gives experimentalists a sense of which temperature ranges they can operate for measuring IETS.
QC 20100804. Ändrat titeln från: "Understanding Electron Transport Properties in Molecular Devices" 20100804.
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Books on the topic "Electron"

1

Zou, Xiaodong. Electron crystallography: Electron microscopy and electron diffraction. Oxford: Oxford University Press, 2011.

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Tsvetkov, Yuri D., Michael K. Bowman, and Yuri A. Grishin. Pulsed Electron–Electron Double Resonance. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05372-7.

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Paynter, Robert T. Introductory electric circuits: Electron flow version. Upper Saddle River, N.J: Prentice Hall, 1999.

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1938-, Ėfros A. L., and Pollak Michael, eds. Electron-electron interactions in disordered systems. Amsterdam: North-Holland, 1985.

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Floyd, Thomas L. Principles of electric circuits: Electron flow version. 8th ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2007.

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Floyd, Thomas L. Principles of electric circuits: Electron flow version. 4th ed. Upper Saddle River, N.J: Prentice Hall, 1997.

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Floyd, Thomas L. Principles of electric circuits: Electron flow version. 2nd ed. Columbus: Merrill Pub. Co., 1990.

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Floyd, Thomas L. Principles of electric circuits: Electron flow version. 6th ed. Upper Saddle River, N.J: Prentice Hall, 2003.

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Floyd, Thomas L. Principles of electric circuits: Electron-flow version. 5th ed. Upper Saddle River, N.J: Prentice Hall, 2000.

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Isihara, Akira. Electron Liquids. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993.

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Book chapters on the topic "Electron"

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Keighley, H. J. P., F. R. McKim, A. Clark, and M. J. Harrison. "Electrons and Electron Beams." In Mastering Physics, 189–97. London: Macmillan Education UK, 1986. http://dx.doi.org/10.1007/978-1-349-86062-3_21.

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Keighley, H. J. P., F. R. McKim, A. Clark, and M. J. Harrison. "Electrons and Electron Beams." In Mastering Physics, 189–97. London: Macmillan Education UK, 1986. http://dx.doi.org/10.1007/978-1-349-08849-2_21.

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Bányai, Ladislaus Alexander. "Electron–Electron Interaction." In A Compendium of Solid State Theory, 55–72. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-37359-7_3.

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Bányai, Ladislaus Alexander. "Electron-Electron Interaction." In A Compendium of Solid State Theory, 51–63. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78613-1_3.

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Czycholl, Gerd. "Electron–Electron Interaction." In Solid State Theory, Volume 1, 167–246. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-66135-2_6.

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Tsuda, Nobuo, Keiichiro Nasu, Atsushi Fujimori, and Kiiti Siratori. "Electron—Electron Interaction and Electron Correlation." In Springer Series in Solid-State Sciences, 119–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04011-9_4.

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Williamson, S., and G. A. Mourou. "Picosecond Electro-Electron Optic Oscilloscope." In Picosecond Electronics and Optoelectronics, 58–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70780-3_10.

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Razeghi, Manijeh. "Electron-Electron Interactions: Screening." In Fundamentals of Solid State Engineering, 461–72. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-75708-7_14.

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Hyde, James S., and Jim B. Feix. "Electron-Electron Double Resonance." In Spin Labeling, 305–7. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-0743-3_6.

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Jeschke, G., M. Pannier, and H. W. Spiess. "Double Electron-Electron Resonance." In Distance Measurements in Biological Systems by EPR, 493–512. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/0-306-47109-4_11.

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Conference papers on the topic "Electron"

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Hopkins, Patrick E. "Contribution of D-Band Electrons to Ballistic Electron Transport and Interfacial Scattering During Electron-Phonon Nonequilibrium in Thin Metal Films." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88270.

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Electron-interface scattering during electron-phonon nonequilibrium in thin films creates another pathway for electron system energy loss as characteristic lengths of thin films continue to decrease. As power densities in nanodevices increase, excitations of electrons from sub-conduction-band energy levels will become more probable. These sub-conduction-band electronic excitations significantly affect the material’s thermophysical properties. In this work, the effects of d-band electronic excitations are considered in electron energy transfer processes in thin metal films. In thin films with thicknesses less than the electron mean free path, ballistic electron transport leads to electron-interface scattering. The ballistic component of electron transport, leading to electron-interface scattering, is studied by a ballistic-diffusive approximation of the Boltzmann Transport Equation. The effects of d-band excitations on electron-interface energy transfer is analyzed during electron-phonon nonequilibrium after short pulsed laser heating in thin films.
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Ogawa, S., and H. Petek. "Hot-electron dynamics at Cu surfaces." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.fe.47.

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Dynamics of electrons in solids is important to many phenomena such as optical, electrical, magnetical, and chemical properties of matter. Direct measurements of electron-electron (e-e) scattering rates provide critical tests for many body theories. Recent developments in ultrafast laser technology make it possible to probe directly femtosecond phenomena such as e-e scattering in metals. As a consequence of a large cross section for electron scattering hot-electon lifetimes in metals are in femtosecond regime, and until recently the scattering rate could only be evaluated by indirect measurements of heat and electrical transport properties. Two-photon time-resolved photoemission (TPTRP) measures the direct change of hot-electron population as a function of time. So far, this technique has been applied to direct measurement of electron relaxation by electron-phonon scattering in polycrystalline Au[1], hot electron thermalization by e-e scattering in Cu(100)[2], and image potential state decay on Ag(100) and Ag(111) surfaces[3]. With higher time resolution(<10fs) we have been able to resolve coherent component in hot-electron decay due to optical dephasing from the slower population decay rates of hot-electrons at Cu(100) and Cu(110) surfaces[4]. Here we report the results on Cu(100), Cu(110) and Cu(111) surfaces and compare them with Fermi liquid theory.
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Melissinos, A. C. "Laser Electron Interactions at Critical Field Strength." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.wa.1.

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The electric field in the focus of an ultrafast laser pulse of sufficient energy can reach extremely high values; for I = 1019 W/cm2, Erms=Z0I∼6×1010V/cm. When a high energy electron traverses the laser focus, it experiences in its own rest-frame a field E * = 2γErms where γ = ε/mc2 is the Lorentz factor of the electron [ε is the energy and mc2 the rest mass of the electron]. In the present experiment, electrons from the Stanford Linear Accelerator collided with a frequency doubled pulse from a Nd:glass laser system.
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4

Williamson, S., and G. Mourou. "Picosecond Electro-Electron Optic Oscilloscope." In Picosecond Electronics and Optoelectronics. Washington, D.C.: Optica Publishing Group, 1985. http://dx.doi.org/10.1364/peo.1985.pdp2.

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The technique of picosecond electro-optic sampling for time-resolving ultrafast electrical transients is presently the only means by which an electrical waveform can be measured with single picosecond resolution. In addition, the electro-optic sampling oscilloscope is capable of millivolt sensitivity and can be used in a contactless configuration, a feature that will enable the rapid characterization of packaged electronic circuits or 2-dimensionai mapping of electric fields. The major drawback of the electro-optic sampling oscilloscope is that it requires a short pulse laser system. The complexity of such a laser system results in a sampling oscilloscope that is delicate, maintenance intensive, and expensive, precluding its development in all but a few large laboratories.
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Groeneveld, Rogier H. M., Rudolf Sprik, and Ad Lagendijk. "Electron-electron dynamics observed in femtosecond thermoreflection measurements on noble metals." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/up.1992.mc6.

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The relaxation dynamics of laser-heated electrons has been studied extensively in metals and (hiTc) superconductors[1] by various femtosecond thermomodulation techniques. These measurements give new insights in the electronic properties and provide direct information about the electron-phonon (e-p) coupling strength. A nearly unexplored type of dynamics is the (e-e) dynamics within the electron gas in a laser-heated metal. The extremely small e-e collision time (~ 10 fs), associated with the highly nonthermal electron distribution during excitation, makes direct observation a challenging task. We report the first experimental evidence of e-e dynamics in thermoreflection measurements by its direct effect on the e-p energy relaxation process for Ag and Au in the regime of low temperature and low laser-energy density[2]. The well-established two-temperature model cannot account for our results and a new model has been succesfully applied.
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Schoenlein, R. W., W. Z. Lin, J. G. Fujimoto, and G. L. Eesley. "Femtosecond Studies of Nonequilibrium Electronic Processes in Metals." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.wc7.

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An ultrashort laser pulse incident on a metal first interacts with the electrons which thermalize rapidly via electron-electron scattering. If the pulses are sufficiently short, electron temperatures in excess of the lattice temperature are generated since the electronic specific heat is much less than that of the lattice. Thermal relaxation of the electrons occurs primarily through electron-phonon interaction. Such processes have been investigated theoretically and observed experimentally[1-3].
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Pecchia, Gagliardi, Di Carlo, Niehaus, Frauenheim, and Lugli. "Atomistic simulation of the electronic transport in organic nanostructures: electron-phonon and electron-electron interactions." In Electrical Performance of Electronic Packaging. IEEE, 2004. http://dx.doi.org/10.1109/iwce.2004.1407346.

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Cao, Bing-Yang, Qing-Guang Zhang, and Zeng-Yuan Guo. "Motion of Electron Gas and the Induced Nanofilm Electromigration." In 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2007. http://dx.doi.org/10.1115/mnc2007-21150.

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Understanding how electron gas moves and induces electromigration is highly desirable in micro- and nano-electronic devices. Based on introducing some novel concepts of electron gas momentum, kinetic energy and resisting force, we establish the continuum, momentum and energy conservation equations of the electron gas in this paper. Through analyzing the control equations, the Ohm’s law can be derived if the inertial force or the kinetic energy of the electron gas is ignored. Thus, the Ohm’s law is no longer applicable if the variation of the electron gas momentum is too large to be ignored. For instance, the kinetic energy variation can not be ignored for the electron gas with a high velocity flowing along the conductor with variable cross-sections. Under such conditions, the electric resistance of the section-variable conductors is a function of the electric current density and direction, which is referred to as a kinetic energy effect on the electric resistance. Based on the control equations of the electron gas motion, the electron wind force and the kinetic energy can also be calculated. The kinetic energy transferred from the electron wind to metallic atoms increases greatly with the increasing electric current density. It may be comparable with the activated energy of the metallic atoms in nanofilms. Thus, the electromigration induced by the electron wind can be regarded as another kind of kinetic energy effect of the electron gas, i.e. kinetic energy effect on the electromigration.
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Schwartz, Benjamin J., and Peter J. Rossky. "Polarized Ultrafast Transient Spectroscopy of the Hydrated Electron: Quantum Non-Adiabatic Molecular Dynamics Simulation." In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/up.1994.thd.9.

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The transient spectroscopy of the aqueous solvated electron has been the subject of intense experimental1-3 and theoretical4-8 interest recently. Hydrated electrons play an important role as intermediaries in the radiation chemistry of water, as well as in solution photochemistry and electron transfer reactions. Furthermore, the coupling of solvent fluctuations to the electronic absorption spectrum makes the hydrated electron an outstanding probe of electronic solvation dynamics in the aqueous environment. The optical absorption spectrum of the hydrated electron is comprised of three s->p like transitions which are highly broadened and split by coupling to solvent fluctuations.6
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Hadinata, Philip C., and John A. Main. "Strain and Current Responses During Electron Flux Excitation of Piezoelectric Ceramics." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39013.

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The electric field induced strain in piezoelectric materials subjected to an electron flux is examined in this paper. An analysis using quantum mechanics indicates that stable and controllable strains with very low current draw should be achievable over a range of positive and negative control potentials. The model also predicts an instability in the internal electric field at larger negative potentials. The model was evaluated by observing the strain output of PZT5h plates subjected to an electron flux on one face and voltage inputs from a single electrode on the opposite face. The strain response and current flow were measured as a function of electrode potential and electron energy. All of the significant predictions of the model were verified by the experimental results. Further experiments were performed to examine the time response of the strain induced in the plate. It was found that the location and potential of the electron collector dramatically influences the dynamic response of the system.
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Reports on the topic "Electron"

1

van der Heijden, Joost. Optimizing electron temperature in quantum dot devices. QDevil ApS, March 2021. http://dx.doi.org/10.53109/ypdh3824.

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The performance and accuracy of quantum electronics is substantially degraded when the temperature of the electrons in the devices is too high. The electron temperature can be reduced with appropriate thermal anchoring and by filtering both the low frequency and radio frequency noise. Ultimately, for high performance filters the electron temperature can approach the phonon temperature (as measured by resistive thermometers) in a dilution refrigerator. In this application note, the method for measuring the electron temperature in a typical quantum electronics device using Coulomb blockade thermometry is described. This technique is applied to find the readily achievable electron temperature in the device when using the QFilter provided by QDevil. With our thermometry measurements, using a single GaAs/AlGaAs quantum dot in an optimized experimental setup, we determined an electron temperature of 28 ± 2 milli-Kelvin for a dilution refrigerator base temperature of 18 milli-Kelvin.
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Tarachiu, Alexandru. New measurement of electron electric dipole moment. ResearchHub Technologies, Inc., August 2023. http://dx.doi.org/10.55277/researchhub.zp84i6ei.

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Sih, Vanessa. Electron Spin Polarization in Large Electric Fields. Office of Scientific and Technical Information (OSTI), May 2024. http://dx.doi.org/10.2172/2344990.

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Shiltsev, Vladimir. Electron Multi-Beams (Electron Grids, Electron Lattices and Electron Grates): New Elements for Accelerators. Office of Scientific and Technical Information (OSTI), January 2018. http://dx.doi.org/10.2172/1464935.

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Kastner, Marc A. Electron Spins in Single Electron Transistors. Fort Belvoir, VA: Defense Technical Information Center, January 2009. http://dx.doi.org/10.21236/ada500634.

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Nishikawa, Masaru, R. A. Holroyd, and Kengo Itoh. Behavior of excess electrons in supercritical fluids -- Electron attachment. Office of Scientific and Technical Information (OSTI), July 1999. http://dx.doi.org/10.2172/354895.

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7

Scott, M., and R. Springer. Electronic diamond: Fabrication processes and electron emission performance. Office of Scientific and Technical Information (OSTI), September 1996. http://dx.doi.org/10.2172/378941.

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8

Burov, A., and V. Lebedev. Cylindric electron envelope for relativistic electron cooling. Office of Scientific and Technical Information (OSTI), February 2005. http://dx.doi.org/10.2172/15020209.

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Alexey V. Burov. Antiproton and electron optics for electron cooling. Office of Scientific and Technical Information (OSTI), June 2000. http://dx.doi.org/10.2172/757180.

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G. Taylor, P. Efthimion, B. Jones, T. Munsat, J. Spaleta, J. Hosea, R. Kaita, R. Majeski, and J. Menard. Electron Bernstein wave electron temperature profile diagnostic. Office of Scientific and Technical Information (OSTI), July 2000. http://dx.doi.org/10.2172/758660.

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