Relevant bibliographies by topics / Weak localization scattering

Academic literature on the topic 'Weak localization scattering'

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Published: 14 March 2023

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Journal articles on the topic "Weak localization scattering"

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Stephen, Michael J. "Rayleigh Scattering and Weak Localization." Physical Review Letters 56, no. 17 (April 28, 1986): 1809–10. http://dx.doi.org/10.1103/physrevlett.56.1809.

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Rhie, K., and D. G. Naugle. "Strong magnetic scattering in weak localization." IEEE Transactions on Magnetics 32, no. 5 (1996): 4666–68. http://dx.doi.org/10.1109/20.539112.

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van der Mark, Martin B., Meint P. van Albada, and Ad Lagendijk. "Light scattering in strongly scattering media: Multiple scattering and weak localization." Physical Review B 37, no. 7 (March 1, 1988): 3575–92. http://dx.doi.org/10.1103/physrevb.37.3575.

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Horsell, D. W., F. V. Tikhonenko, R. V. Gorbachev, and A. K. Savchenko. "Weak localization in monolayer and bilayer graphene." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 366, no. 1863 (November 19, 2007): 245–50. http://dx.doi.org/10.1098/rsta.2007.2159.

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We demonstrate quantitative experimental evidence for a weak localization correction to the conductivity in monolayer and bilayer graphene systems. We show how inter- and intra-valley elastic scattering control the correction in small magnetic fields in a way which is unique to graphene. A clear difference in the forms of the correction is observed in the two systems, which shows the importance of the interplay between the elastic scattering mechanisms and how they can be distinguished. Our observation of the correction at zero-net carrier concentration in both systems is clear evidence of the inhomogeneity engendered into the graphene layers by disorder.
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YANG, Y. H. "MAGNETIC SCATTERING EFFECTS IN A QUASI-TWO-DIMENSIONAL DISORDERED ELECTRON SYSTEM." Modern Physics Letters B 14, no. 27n28 (December 10, 2000): 995–1000. http://dx.doi.org/10.1142/s0217984900001257.

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The weak-localization correction to the conductivity for a quasi-two-dimensional disordered electron system is calculated in the presence of magnetic impurity scatterings. The analytical result is obtained as a function of the magnetic scattering time, and the interesting magnetic-scattering-dependent crossover behavior from 3D to 2D is discussed.
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van der Mark, Martin B., Meint P. van Albada, and Ad Lagendijk. "Erratum: Light scattering in strongly scattering media: Multiple scattering and weak localization." Physical Review B 38, no. 7 (September 1, 1988): 5063. http://dx.doi.org/10.1103/physrevb.38.5063.

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Lu, J., B. Shen, N. J. Tang, D. J. Chen, and Y. D. Zheng. "Anti-Weak Localization of the Two Dimensional Electron Gas in Modulation-Doped AlxGa1-xN/GaN Single Quantum Well." Materials Science Forum 475-479 (January 2005): 1787–90. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1787.

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The weak-localization of the two-dimensional electron gas (2DEG) in a modulation-doped Al0.22Ga0.78N/GaN single quantum well has been investigated through the magnetoresistance measurements. The elastic scattering time τε, dephasing time τφ and spin-orbit(s-o) scattering time τso at various temperatures are obtained. The fitting parameters indicate that the inelastic scatterings to the 2DEG are mainly due to the piezoelectric field and the alloy disorder in the AlxGa1-xN barrier. When the second subband in the triangular quantum well at the heterointerface is occupied by the 2DEG, the anti-weak localization is observed clearly, which is due to the strong spin-orbit interaction. The spin-orbit effect dominates the quantum correction of the conductivity in the upper subband. The intersubband scattering becomes stronger with increasing temperature.
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Maret, Georg, and Pierre Etienne Wolf. "Multiple Light Scattering: Weak Localization and Dynamic Fluctuations." Physica Scripta T29 (January 1, 1989): 223–25. http://dx.doi.org/10.1088/0031-8949/1989/t29/042.

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Kaveh, M., M. Rosenbluh, I. Edrei, and I. Freund. "Weak Localization and Light Scattering from Disordered Solids." Physical Review Letters 57, no. 16 (October 20, 1986): 2049–52. http://dx.doi.org/10.1103/physrevlett.57.2049.

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Stephen, Michael J., and Gabriel Cwilich. "Rayleigh scattering and weak localization: Effects of polarization." Physical Review B 34, no. 11 (December 1, 1986): 7564–72. http://dx.doi.org/10.1103/physrevb.34.7564.

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Dissertations / Theses on the topic "Weak localization scattering"

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Langenfeld, Annette. "Etude de corrélations électroniques dans des systèmes désordonnés." Grenoble 1, 1993. http://www.theses.fr/1993GRE10081.

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Cette these est faite de deux parties independantes. La premiere partie traite les corrections quantiques a l'effet hall anormal. On peut montrer que les termes de l'anomalie coulombienne se compensent mutuellement en considerant la diffusion asymetrique des electrons de conduction par les moments magnetiques d'une couche metallique desordonnee. La contribution venant de la localisation faible est coupee par la diffusion asymetrique qui brise la coherence de phase. Les resultats sont en bon accord avec une experience recente sur des couches minces de fer desordonnees et ferromagnetiques. Dans la seconde partie, on etudie la formation de moments magnetiques localises dans des systemes comme des semiconducteurs dopes en phase metallique. Le calcul est base sur le modele de hubbard avec desordre hors-diagonal. En examinant le modele a une seule impurete faiblement rattachee au reseau, on trouve un moment magnetique localise, et cela meme dans l'approximation de hartree-fock pour la repulsion locale u. On associe a ce moment magnetique un effet kondo dont la nature et la dependance par rapport au desordre sont discutees. Les resultats sont compares a une experience recente mesurant le pouvoir thermoelectrique du si:p. La correspondance est satisfaisante
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Dunford, Jeffrey Loren. "Elastic Scattering Phenomena in Molecularly-linked Gold Nanoparticle Films." Thesis, 2008. http://hdl.handle.net/1807/16725.

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We have investigated the conductance, g, of 1,4-butanedithiol linked Au nanoparticle films as a function of temperature, T, bias potential, V, and applied magnetic field, B. An interesting temperature dependence is observed for non-metallic films with thicknesses just below a critical film thickness: g ~ exp [-(T_0/T)^(1/2)] for 20 K < T < 300 K. We show that this temperature dependence is incompatible with an Efros-Shklovskii "variable range hopping" model, since "hopping distances" are too large to be consistent with tunneling processes, and tend to scale with size of super-clusters of molecularly-linked nanoparticles. We propose a "quasilocalized hopping" model based on competition between single-electron charging of super-clusters and electron backscattering within super-clusters to explain the observed temperature dependence. Various electron scattering time scales are extracted from magnetoconductance data using a modified "weak localization" model. Elastic scattering time scales are comparable to those required for an electron to traverse a nanoparticle, while inelastic and spin-orbit scattering time scales are consistent with those found in studies of conventionally-prepared granular Au films. At interfaces between metallic 1,4-butanedithiol-linked Au nanoparticle films and conventional superconductors, we find that g consistently exhibits peaks, as well as oscillations, that depend simultaneously on both V and B. Such peaks and correlated conductance oscillations are predicted by an enhanced Andreev reflection process due to disorder-driven elastic scattering and electron-hole interference in the nanoparticle film. While oscillations have been predicted by a so-called "reflectionless tunneling" model, they have not been observed at other normal-superconductor interfaces. We speculate that oscillations are observable in this system due to synthetically controlled uniformity of elastic scattering length (i.e., nanoparticle diameter) and a reduced number of current-carrying pathways, especially near the interface. Contrary to predictions of existing "reflectionless tunneling" models, we find that the periods of oscillation in B decrease as T increases. This suggests that the area of interfering pathways increases with T. We propose that this increasing area can be attributed to magnetic field penetration into the superconductor. Conductance data agrees remarkably well with known temperature dependence of penetration depth predicted by BCS theory. Our study shows that this additional region of flux must be considered in experimental and theoretical studies of "reflectionless tunneling", and underscores the utility of molecularly-linked nano\-particle films as a platform for studying charge transport.
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Books on the topic "Weak localization scattering"

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Fyodorov, Yan, and Dmitry Savin. Condensed matter physics. Edited by Gernot Akemann, Jinho Baik, and Philippe Di Francesco. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198744191.013.35.

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This article discusses some applications of concepts from random matrix theory (RMT) to condensed matter physics, with emphasis on phenomena, predicted or explained by RMT, that have actually been observed in experiments on quantum wires and quantum dots. These observations range from universal conductance fluctuations (UCF) to weak localization, non-Gaussian thermopower distributions, and sub-Poissonian shot noise. The article first considers the UCF phenomenon, nonlogarithmic eigenvalue repulsion, and sub-Poissonian shot noise in quantum wires before analysing level and wave function statistics, scattering matrix ensembles, conductance distribution, and thermopower distribution in quantum dots. It also examines the effects (not yet observed) of superconductors on the statistics of the Hamiltonian and scattering matrix.
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Book chapters on the topic "Weak localization scattering"

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Stephen, M. J. "Weak Localization, Correlations and Fluctuations in Light Scattering from a Disordered Medium." In Springer Proceedings in Physics, 127–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74893-6_14.

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VAN ALBADA, M. P., M. B. VAN DER MARK, and A. LAGENDIJK. "EXPERIMENTS ON WEAK LOCALIZATION OF LIGHT AND THEIR INTERPRETATION." In Scattering and Localization of Classical Waves in Random Media, 97–136. WORLD SCIENTIFIC, 1990. http://dx.doi.org/10.1142/9789814340687_0002.

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Margerin, Ludovic. "Chapter 1 Coherent Back-Scattering and Weak Localization of Seismic Waves." In Advances in Geophysics, 1–19. Elsevier, 2008. http://dx.doi.org/10.1016/s0065-2687(08)00001-0.

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SUGIYAMA, Tadao, and Hanoch GUTFREUND. "EFFECTS OF FORWARD SCATTERING AND INCOMMENSURATE LATTICE IN 1-D WEAK LOCALIZATION." In Proceedings of the Yamada Conference XV on Physics and Chemistry of Quasi One-Dimensional Conductors, 224–26. Elsevier, 1986. http://dx.doi.org/10.1016/b978-1-4832-2812-9.50070-7.

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Conference papers on the topic "Weak localization scattering"

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ILYUSHIN, Yaroslaw. "Weak localization in highly anisotropically scattering media." In 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, edited by Gennadii G. Matvienko and Oleg A. Romanovskii. SPIE, 2020. http://dx.doi.org/10.1117/12.2574781.

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Valencia, C. I., and E. R. Méndez. "Weak Localization Effects in Second-Harmonic Light Scattering." In Photonic Metamaterials: From Random to Periodic. Washington, D.C.: OSA, 2007. http://dx.doi.org/10.1364/meta.2007.tub32.

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Dubov, Victor V., and Vadim V. Korablev. "Weak localization of electrons by quasi-elastic scattering." In Fifth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, edited by Alexander I. Melker. SPIE, 2002. http://dx.doi.org/10.1117/12.456294.

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Maynard, R., and A. S. Martinez. "Time-Reversal and Reciprocity Principle Breaking in Weak Localization of Light." In Advances in Optical Imaging and Photon Migration. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/aoipm.1994.wpl.64.

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The enhancement factor of the backscattering cone in disordered media, can be assigned to the reciprocity principle. In the context of weak localization of light, the destruction of the backscattering cone can be accomplished by applying a magnetic field in an magnetic-optically active random medium. The time-reversal symmetry breaking and the reciprocity principle breaking is discussed and exemplified using Rayleigh multiple scattering.
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Maradudin, A. A. "Perturbation Theory of the Enhanced Backscattering of Light From Weakly Rough Random Metal Surfaces." In Surface Roughness and Scattering. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/surs.1992.stua1.

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The enhanced backscattering of light from a small rms height, small rms slope, one-dimensional randomly rough surface of a metal was first predicted on the basis of an infinite-order perturbation calculation that used the techniques of many-body theory and employed the concepts of weak localization theory. In this paper we present an elementary calculation of the contribution to the mean differential reflection coefficient from the incoherent component of the scattered light that is based on the first few terms in the expansion of this function in powers of the surface profile function. We show that this approach accounts not only for enhanced backscattering but gives the correct order of magnitude of the effect predicted by infinite-order perturbation theory.
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Yoon, G., D. N. G. Roy, R. E. Benner, and R. C. Straight. "Weak localization of photons in biological tissue using a cw laser." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.mmm6.

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When light is scattered through a randomly in homogeneous medium, backscattering within a narrow cone is enhanced.1 This enhancement occurs because of the phase coherence between waves that travel the same paths in opposite directions. Recently, a femtosecond laser with a synchroscan streak camera was used to measure the enhanced backscattering.2 However, the technique is equipment-intensive. In our experiment, a simpler setup using the CCD array and cw lasers, such as a He-Ne, are used to measure the coherent peaks from biological tissues. Unlike from a liquid medium with scattering particles, the images from a solid surface show specklelike fluctuations. Ensemble averaging is required to reveal the coherent peak. The peak shapes are influenced by the beam polarization. With the polarization parallel to the plane of incidence, a sharper peak is observed. In addition, the relation of the peak shape to the optical properties such as transport mean free path and absorption length are discussed.
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van Albada, Meint P., Deiderik S. Wiersma, and Ad Lagendijk. "Experimental Evidence for Loop-Type Photon Trajectories in Random Media with Strong Disorder." In Advances in Optical Imaging and Photon Migration. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/aoipm.1994.wpl.25.

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McGurn, A. R., A. A. Maradudin, R. E. Luna, E. R. Mendez, and Zu-Han Gu. "Conical scattering from a one-dimensional random surface." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.fgg4.

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We study theoretically and experimentally the scattering of light from a one-dimensional, random metal surface when the plane of incidence is parallel to the generators of the surface and perpendicular to the mean surface. The incoherent component of the scattered light is found to be confined to a conical surface whose axis of rotation is the intersection of the plane of incidence with the mean surface. Scattering anomalies associated with weak localization are observed in both co-polarized and cross-polarized scattering. Theoretical results are presented for the scattering of visible light from both silver and gold surfaces. Experimental data displaying these anomalies are presented.
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Muhlestein, Michael B., Benjamin M. Goldsberry, Caleb F. Sieck, and Michael R. Haberman. "Analytical and Numerical Investigation of Scattering From Bianisotropic Acoustic Media." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-72672.

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Scattering from fluid domains with dissimilar material properties is of foundational importance to many application areas in acoustics and elastic wave propagation. For example, biomedical ultrasound and sonar both make use of acoustic field scattering for localization, imaging, and identification of objects. The theory of acoustic scattering from fluid and elastic materials is well established and has been validated with numerical and physical experiments. Recent work in acoustic and elastic meta-materials has shown that materials with subwavelength asymmetry have a macroscopic response characterized by a scalar bulk modulus, a tensorial mass density, and a vector that couples the pressure-strain relationship with the momentum density-particle velocity relationship. This type of constitutive behavior is the acoustic analogue of bianisotropy in electromagnetism and has come to be known as Willis coupling in acknowledgement of the first description of this material response by J.R. Willis [Willis, Wave Motion 3, pp. 111 (1981)]. We present a theoretical description of acoustic scattering of a plane wave incident upon a cylinder exhibiting weak Willis coupling using a perturbation approach. The scattered field depends upon the orientation of the Willis coupling vector and is therefore anisotropic despite the symmetry of the geometry. The analytical model is validated through comparison with a finite element-based numerical experiment where the bianisotropic material response is introduced using a weak formulation of the constitutive equations.
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Brady, David, George Papen, and John Sipe. "Photon localization in radially distributed dielectric resonators." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.fee5.

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Electromagnetic propagation is inhibited over the complete solid angle for a finite range of frequencies, and localized modes arise in perfect dielectrics with radially periodic indices of refraction. The electromagnetic properties of such structures are similar to periodic photonic band structures, but radial perturbations scatter weakly away from the Bragg resonance and yield a gap for arbitrarily weak index perturbations. The simplest radial perturbation is δn = Δn o cos(Kr). In 3-D, this perturbation causes narrow gaps and true localized modes. 2-D systems are constructed by radially perturbing the effective index of slab waveguides. True photon localization is not possible in purely dielectric 2-D systems, but high-Q transparent resonators can be constructed. We discuss solutions to the vector Helmholtz equation under radial dielectric modulation and describe resonance spectra and scattering in 3-D and 2-D structures. We discuss the fabrication of 2-D structures.
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