Letteratura scientifica selezionata sul tema "Excitations de charge"
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Articoli di riviste sul tema "Excitations de charge":
Dressel, M., N. Drichko e S. Kaiser. "Collective charge-order excitations". Physica C: Superconductivity and its Applications 470 (dicembre 2010): S589—S591. http://dx.doi.org/10.1016/j.physc.2009.10.116.
Sagawa, Hiroyuki. "Single and Double Charge Exchange Excitations of Spin-Isospin Mode". EPJ Web of Conferences 223 (2019): 01053. http://dx.doi.org/10.1051/epjconf/201922301053.
Freeman, P. G., S. M. Hayden, C. D. Frost, D. Prabhakaran e A. T. Boothroyd. "Magnetic excitations of charge-ordered". Journal of Magnetism and Magnetic Materials 310, n. 2 (marzo 2007): 760–62. http://dx.doi.org/10.1016/j.jmmm.2006.10.488.
Thalmeier, P., e A. N. Yaresko. "Magnetic excitations in charge ordered". European Physical Journal B 14, n. 3 (2000): 495. http://dx.doi.org/10.1007/s100510051058.
Thalmeier, P., e A. N. Yaresko. "Magnetic excitations in charge ordered". European Physical Journal B 14, n. 3 (marzo 2000): 495–508. http://dx.doi.org/10.1007/pl00011054.
Moore, Barry, Haitao Sun, Niranjan Govind, Karol Kowalski e Jochen Autschbach. "Charge-Transfer Versus Charge-Transfer-Like Excitations Revisited". Journal of Chemical Theory and Computation 11, n. 7 (17 giugno 2015): 3305–20. http://dx.doi.org/10.1021/acs.jctc.5b00335.
Senaratne, Ruwan, Danyel Cavazos-Cavazos, Sheng Wang, Feng He, Ya-Ting Chang, Aashish Kafle, Han Pu, Xi-Wen Guan e Randall G. Hulet. "Spin-charge separation in a one-dimensional Fermi gas with tunable interactions". Science 376, n. 6599 (17 giugno 2022): 1305–8. http://dx.doi.org/10.1126/science.abn1719.
Kushwaha, Manvir S. "Charge density excitations in semiconductor superlattices". Journal of Applied Physics 62, n. 5 (settembre 1987): 1895–901. http://dx.doi.org/10.1063/1.339577.
Bakhshaei, Elaheh, e Alessandro Bombini. "Three-charge superstrata with internal excitations". Classical and Quantum Gravity 36, n. 5 (4 febbraio 2019): 055001. http://dx.doi.org/10.1088/1361-6382/ab01bc.
Björnsson, P., M. Rübhausen, J. Bäckström, M. Käll, S. Eriksson, J. Eriksen e L. Börjesson. "Lattice and charge excitations inLa1−xSrxMnO3". Physical Review B 61, n. 2 (1 gennaio 2000): 1193–97. http://dx.doi.org/10.1103/physrevb.61.1193.
Tesi sul tema "Excitations de charge":
Waidacher, Christoph. "Charge properties of cuprates: ground state and excitations". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2000. http://nbn-resolving.de/urn:nbn:de:swb:14-998985918593-73513.
Waidacher, Christoph. "Charge properties of cuprates: ground state and excitations". Doctoral thesis, Technische Universität Dresden, 1999. https://tud.qucosa.de/id/qucosa%3A24786.
Lorin, Arnaud. "Electronic properties of silver chloride : influence of excitons on the charge dynamics". Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX087.
In 1848, Edmond Becquerel proposed one of the first techniques of color photography. This technique raised a long-standing debate in the scientific community concerning the origin of the observed colors. In 2019, Victor de Seauve, during his thesis at the Muséum National d'Histoire Naturelle in Paris, could clarify some important issues, proposing a new explanation. The aim of the present thesis was to participate in this effort of comprehension, by adding theoretical insight. The first question is which level of theory one may adopt in order to correctly describe the electronic and optical properties of AgCl. Our calculations show that only the solution of the Bethe-Salpeter equation is able to describe the optical spectrum of AgCl, since the spectrum is dominated by a strong peak at the absorption onset, due to a bound exciton. Moreover, the calculation has to be based on a band structure that results from a self-consistent GW calculation. In order to make the Bethe-Salpeter calculations possible, a previously proposed model dielectric function was used in an improved way. Our results well describe the measured absorption spectra, and enable us to analyse and interpret the observations. In the hypothesis brought forward by the team at the Museum, the light excites a silver nanoparticle, followed by a transfer of charge at the interface between the nanoparticle and AgCl. In order to be able to study this phenomenon, we have developed a numerical approach describing the charge dynamics due to an external perturbation. In particular, this approach has allowed us to show that a bound exciton influences the charge dynamics significantly. Finally, we have set up a first model meant to simulate the charge transfer between a silver nanoparticle and AgCl, based on a simplified heterostructure. We have shown how the absorption spectrum of AgCl changes due to its neighbourhood to the silver metal, and how these changes can be described by the effective medium theory. Calculations of the density induced by a periodic perturbation have been carried out. These calculations remain cumbersome, and the study will continue with the idea to combine ab initio calculations with effective medium theory
Liang, H. "Nuclear charge-exchange excitations in a self-consistent covariant approach". Phd thesis, Université Paris Sud - Paris XI, 2010. http://tel.archives-ouvertes.fr/tel-00506913.
Rubio, Pons Oscar. "Charge-transfer excitations and phtophysical properties of molecular building blocks". Doctoral thesis, KTH, Teoretisk kemi (stängd 20110512), 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-184.
QC 20101011
Rubio, Pons Óscar. "Charge-transfer excitations and photophysical properties of molecular building blocks /". Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-184.
Liang, Haozhao. "Nuclear charge-exchange excitations in a self-consistent covariant approach". Paris 11, 2010. http://www.theses.fr/2010PA112178.
Nowadays, charge-exchange excitations in nuclei become one of the central topics in nuclear physics and astrophysics. Basically, a systematic pattern of the energy and collectivity of these excitations could provide direct information on the spin and isospin properties of the in-medium nuclear interaction, and the equation of state of asymmetric nuclear matter. Furthermore, a basic and critical quantity in nuclear structure, neutron skin thickness, can be determined indirectly by the sum rule of spin-dipole resonances (SOR) or the excitation energy spacing between the isobaric analog states (lAS) and Gamow-Teller resonances (GTR). More generally, charge-exchange excitations allow one to attack other kinds of problems outside the realm of nuclear structure, like the description of neutron star and supernova evolutions, the β-decay of nuclei which lie on the r-process path of stellar nucleosynthesis, and the neutrino-nucleus cross sections. They also play an essential role in extracting the value of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element Vud via the nuclear 0+→ 0 + superallowed Fermi β decays. For all these reasons, it is important to develop the microscopic theories of charge-exchange excitations and it is the main motivation of the present work. Ln this work, a fully self-consistent charge-exchange relativistic random phase approximation (RPA) based on the relativistic Hartree-Fock (RHF) approach is established. Its self-consistency is verified by the so-called lAS check. This approach is then applied to investigate the nuclear spin-isospin resonances, isospin symmetry-breaking corrections for the superallowed β decays, and the charged-current neutrino-nucleus cross sections. For two important spin-isospin resonances, GTR and SOR, it is shown that a very satisfactory agreement with the experimental data can be obtained without any readjustment of the energy functional. Furthermore, the isoscalar mesons are found to play an essential role in spin-isospin resonances via the exchange terms, which leads to a profound effect in the nuclear isovector properties, e. G. , the density dependence of the symmetry energy in nuclear matter. Ln the investigation of the isospin symmetry-breaking corrections for the superallowed β decays, it is found that the corrections δc are sensitive to the proper treatments of the Coulomb mean field, but not so much to specific effective interactions. With these corrections δc, the nucleus-independent Ft values are obtained in combination with the experimental ft values in the most recent survey and the improved radiative corrections. The values of Cabibbo-Kobayashi-Maskawa matrix element IVudI thus obtained weil agree with those obtained in neutron decay, pion decay, and nuclear mirror transitions, while the sum of squared top-row elements somehow deviates from the unitarity condition. Expressing the weak lepton-hadron interaction in the standard current-current form, the relevant transitions from the nuclear ground state to the excited states are calculated with RHF+RPA approach. Ln this way, the semileptonic weak interaction processes, e. G. , neutrino reactions, charged- lepton capture, β-decays, can be investigated microscopically and self-consistently. First illustrative calculations of the inclusive neutrino-nucleus cross section are performed for the 16 O(Ve ,e-)16 F reaction, and a good agreement with the previous theoretical studies is obtained. The main effort is dedicated to discussing the substantial influence of different recipes for the axial vector coupling strength and the theoretical low-Iying excited states of the daughter nucleus
Tegomo, Chiogo Bodry. "Spectroscopic studies of cerium and Ytterbium-based Kondo systems". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0193.
Cerium and ytterbium compounds are systems that exhibit outstanding magnetic, electronic, and thermodynamic properties at low temperatures, such as the Kondo effect, heavy fermions, intermediate valence, and charge density waves. These properties are due to the very strong electron-electron interactions of the f states and the hybridization of the f states with the conduction electrons. In the first part of this thesis work, we investigate the temperature-dependent electronic structure of YbPd, a Kondo mixed-valent cubic compound at high temperature, which exhibits incommensurate and commensurate charge-density-wave (CDW) ordering below T_1 = 130 K and T_2 = 105 K, respectively. Below 105 K, magnetic Yb^{3+} and nonmagnetic Yb^{2.6+} are arranged alternatively along the c axis, in a tetragonal structure exhibiting valence order. Hard x-ray photoemission spectroscopy of Yb 3d states show temperature-independent Yb^{2+} and Yb^{3+} features indicating single-Yb site dynamic valence fluctuations above T_1, and a clear temperature dependent valence change of the two crystallographic Yb sites in the CDW phase. Simplified single-impurity Anderson model calculations of the Yb 3d states show good agreement with the temperature-dependent valency change and provide site-dependent Kondo temperatures. The results indicate an evolution from dynamic mixed-valence in the cubic phase to long-range static CDW order in the tetragonal phase, which is driven by the difference in Kondo energies of the two phases. Resonant inelastic x-ray scattering (RIXS) is a very efficient technique to study elementary excitations in a large variety of systems, such as charge transfer excitations, the crystal field, and spin-orbit excitations. In the second part of this work, we investigated cerium compounds with different Kondo temperatures using RIXS at Ce M_5-edge combined with simulation using the full multiplet theory and the single impurity Anderson model. We demonstrated that all the charge excitations observed in combined photoemission and inverse photoemission can be evidenced by RIXS spectroscopy just by varying the incident photon energy around the Ce M_5-edge. We also discuss the drastic polarization dependence of the f^0 structure in RIXS spectra and the strong temperature dependence of the fluorescence-like structure, which is reminiscent of the temperature dependence of the Kondo resonance
Falck, Jens Petter. "Polaronic charge carriers and their optical excitations in insulating La₂CuO₄ây̳". Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12450.
Few, Sheridan. "Theoretical studies of charge transfer excitations, absorption, and polarisation in organic photovoltaic materials". Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/33284.
Libri sul tema "Excitations de charge":
1934-, Okiji A., Makoshi K. 1948-, Kasai H. 1952- e Taniguchi International Symposium on the Theory of Condensed Matter (18th : 1996 : Kashikojima, Japan), a cura di. Elementary processes in excitations and reactions on solid surfaces: Proceedings of the 18th Taniguchi Symposium, Kashikojima, Japan, January 22-27, 1996. Berlin: Springer, 1996.
Baldassare, Di Bartolo, Chen Xuesheng e International School of Atomic and Molecular Spectroscopy, a cura di. Advances in energy transfer processes: Proceedings of the 16th course of the International School of Atomic and Molecular Spectroscopy : Erice, Sicily, Italy, 17 June-1 July, 1999. River Edge, NJ: World Scientific, 2001.
Baldassare, Di Bartolo, Chen Xuesheng e International School of Atomic and Molecular Spectroscopy (1999 : Erice, Italy), a cura di. Advances in energy transfer processes: Proceedings of the 16th course of the International School of Atomic and Molecular Spectroscopy, Erice, Sicily, Italy, 17 June-1 July, 1999. New Jersey: World Scientific, 2001.
Schopper, H., a cura di. Tables of Excitations from Reactions with Charged Particles. Part 3: Z = 63 - 99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-48701-2.
Schopper, H., a cura di. Tables of Excitations from Reactions with Charged Particles. Part 2: Z = 37 - 62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-44713-9.
Schopper, H., a cura di. Tables of Excitations from Reactions with Charged Particles. Part 1: Z = 3 - 36. Berlin/Heidelberg: Springer-Verlag, 2006. http://dx.doi.org/10.1007/b104820.
Ansermet, J. Ph. Spintronics with metallic nanowires. A cura di A. V. Narlikar e Y. Y. Fu. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199533060.013.3.
Ieda, J., e S. Maekawa. Spinmotive force. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198787075.003.0007.
(Editor), Ayao Okiji, Hideaki Kasai (Editor) e Kenji Makoshi (Editor), a cura di. Elementary Processes in Excitations and Reactions on Solid Surfaces: Proceedings of the 18th Taniguchi Symposium Kashikojima, Japan, January 22-27, 1996 (Springer Series in Solid-State Sciences). Springer, 1996.
Oleg, Kirichek, a cura di. Edge excitations of low-dimensional charged systems. Huntington, N.Y, 2001.
Capitoli di libri sul tema "Excitations de charge":
Mäntele, W. "Energy and charge transfer in photosynthesis". In Nonlinear Excitations in Biomolecules, 295–316. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-662-08994-1_23.
Overhauser, A. W. "Phase Excitations of Charge Density Waves". In Anomalous Effects in Simple Metals, 190–98. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527631469.ch29.
Mezhov-Deglin, Leonid P., e Andrey I. Golov. "Charge Motion in Solid Helium". In Excitations in Two-Dimensional and Three-Dimensional Quantum Fluids, 407–17. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-5937-1_39.
Suhonen, Jouni. "Charge-Changing Particle-Hole Excitations and the pnTDA". In Theoretical and Mathematical Physics, 287–303. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-48861-3_10.
Bishop, A. R. "Phonons and Charge-Transfer Excitations in High-Temperature Superconductors". In Springer Series in Solid-State Sciences, 482–500. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-84377-8_23.
Boriack, M. L., e A. W. Overhauser. "Attenuation of Phase Excitations in Charge-Density Wave Systems". In Anomalous Effects in Simple Metals, 212–20. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527631469.ch31.
White, C. T., M. R. Cook, B. I. Dunlap, R. C. Mowrey, D. W. Brenner, P. P. Schmidt e J. W. Mintmire. "Virtual Symmetric Charge Transfer Superconducting Pairing Excitations in C60". In Physics and Chemistry of Finite Systems: From Clusters to Crystals, 1397–402. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-2645-0_195.
Freeman, A. J., S. Massidda e Jaejun Yu. "Bonds, Bands, Charge-Transfer Excitations, and High-Temperature Superconductivity". In ACS Symposium Series, 64–83. Washington, DC: American Chemical Society, 1988. http://dx.doi.org/10.1021/bk-1988-0377.ch006.
Yu, Jaejun, A. J. Freeman e S. Massidda. "Bonds, Bands, Charge Transfer Excitations and Superconductivity: YBa2Cu3O7−δ vs. YBa2Cu3O6". In Novel Superconductivity, 367–72. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-1937-5_39.
Luty, T. "Neutral-to-Ionic Transformation as Condensation and Solidification of Charge-Transfer Excitations". In Springer Series in Solid-State Sciences, 142–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-642-60702-8_15.
Atti di convegni sul tema "Excitations de charge":
Chin, S. L., W. Xiong e P. Lavigne. "Multiple Charges Creation (Up to Xe6+) from Xe atoms by An Intense CO2 Laser*". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.mc2.
Nieminen, R. M. "Excitations, charge transfer and trapping". In 4th International workshop on: Slow−positron beam techniques for solids and surfaces. AIP, 1991. http://dx.doi.org/10.1063/1.40176.
Luk, T. S., H. Jara, U. Johann, I. A. McIntyre, A. McPherson, A. P. Schwarzenbach, K. Boyer e C. K. Rhodes. "Subpicosecond Ultraviolet Multiphoton Electron Spectroscopy of Rare Gases*". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.mc3.
Clark, Charles W., e Stephen J. Buckman. "Regularities of Negative Ion Resonances". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.tua5.
Chu, Shih-I. "Multiphoton and Above-Threshold Ionization". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.ma7.
Agostini, P., G. Petite e F. Yergeau. "Peak suppression in Above-Threshold-Ionization". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.mb3.
Jara, H., U. Johann, T. S. Luk, I. A. McIntyre, A. McPherson, A. P. Schwarzenbach, K. Boyer e C. K. Rhodes. "Multiphoton Excitation and Ionization of Atoms". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.wa1.
Leonardi, Renzo. "Charge-exchange collective excitations and sum rules". In AIP Conference Proceedings Volume 163. AIP, 1987. http://dx.doi.org/10.1063/1.36937.
Faisal, Farhad H. M. "Collective Dipole Exitation of Many-electron Atoms by Intense Laser Pulse". In Multiple Excitations of Atoms. Washington, D.C.: Optica Publishing Group, 1986. http://dx.doi.org/10.1364/mea.1986.tuc9.
Hata, T., T. Endo, M. Hashisaka, T. Akiho, K. Muraki e T. Fujisawa. "Spin-charge separation of fractionally charged excitations studied with current noise measurement". In 2019 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2019. http://dx.doi.org/10.7567/ssdm.2019.e-1-02.
Rapporti di organizzazioni sul tema "Excitations de charge":
Piotr Piotrowiak. Electronic and Nuclear Factors in Charge and Excitation Transfer. Office of Scientific and Technical Information (OSTI), settembre 2004. http://dx.doi.org/10.2172/832834.
Sampson, D. H. Excitation and ionization of highly charged ions by electron impact. Office of Scientific and Technical Information (OSTI), novembre 1989. http://dx.doi.org/10.2172/5179867.
Sampson, D. H. Electron impact collision strengths for excitation of highly charged ions. Office of Scientific and Technical Information (OSTI), agosto 1990. http://dx.doi.org/10.2172/6506503.
Piotrowiak, P. Electronic and nuclear factors in intramolecular charge and excitation transfer processes. Final report. Office of Scientific and Technical Information (OSTI), giugno 1997. http://dx.doi.org/10.2172/491446.
Watson, R. L. Excitation of atoms and molecules in collisions with highly charged ions. Office of Scientific and Technical Information (OSTI), marzo 1992. http://dx.doi.org/10.2172/5302309.
Gorelenkov, N. N., e C. Z. Cheng. Excitation of Alfven Cyclotron Instability by charged fusion products in tokamaks. Office of Scientific and Technical Information (OSTI), agosto 1994. http://dx.doi.org/10.2172/10172222.
Howell, R. B., R. J. Fonck, R. J. Knize e K. P. Jaehnig. Corrections to charge exchange spectroscopic measurements in TFTR due to energy-dependent excitation rates. Office of Scientific and Technical Information (OSTI), agosto 1988. http://dx.doi.org/10.2172/6838276.
Watson, R. Excitation of atoms and molecules in collisions with fast, highly charged ions. Office of Scientific and Technical Information (OSTI), gennaio 1988. http://dx.doi.org/10.2172/5218966.
Sampson, D. H. Relativistic calculations of excitation and ionization of highly charged ions by electron impact. Office of Scientific and Technical Information (OSTI), aprile 1992. http://dx.doi.org/10.2172/6912230.
Piotrowiak, P. Electronic and nuclear factors in intramolecular charge and excitation transfer processes. [Annual report], October 1992--September 1993. Office of Scientific and Technical Information (OSTI), dicembre 1993. http://dx.doi.org/10.2172/10122468.