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We study magnetotransport in a disordered Weyl semimetal taking into account localization effects exactly. In the vicinity of a Weyl node, a single chiral Landau level coexists with a number of conventional non-chiral levels. Disorder…

Mesoscale and Nanoscale Physics · Physics 2017-09-13 E. Khalaf , P. M. Ostrovsky

Light localization by scattering is a fundamental mechanism driving phase transitions of wave transport in disordered systems. Characterizing the localization length in scattering systems is crucial yet challenging. In this Letter, we…

We calculate the weak localization correction in the double crossover to broken time-reversal and spin-rotational symmetry for a disordered microbridge or a short disordered wire using a scattering-matrix approach. Whereas the correction…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. G. A. Crawford , P. W. Brouwer , C. W. J. Beenakker

Transport properties of narrow two-dimensional conducting wires in which the electron scattering is caused by side edges' roughness have been studied. The method for calculating dynamic characteristics of such conductors is proposed which…

Mesoscale and Nanoscale Physics · Physics 2013-02-01 N. M. Makarov , Yu. V. Tarasov

We study the localization properties of two-dimensional electrons in a weak perpendicular magnetic field. For this purpose we construct weakly chiral network models on the square and triangular lattices, by separating in space the regions…

Mesoscale and Nanoscale Physics · Physics 2010-04-22 V. V. Mkhitaryan , V. Kagalovsky , M. E. Raikh

We study the transport properties of interacting electrons in a disordered quantum wire within the framework of the Luttinger liquid model. The conductivity at finite temperature is nonzero only because of inelastic electron-electron…

Disordered Systems and Neural Networks · Physics 2009-11-10 I. V. Gornyi , A. D. Mirlin , D. G. Polyakov

Localization and delocalization of non-interacting quasiparticle states in a superconducting wire are reconsidered, for the cases in which spin-rotation symmetry is absent, and time-reversal symmetry is either broken or unbroken; these are…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ilya A. Gruzberg , N. Read , Smitha Vishveshwara

We discuss the localization behavior of localized electronic wave functions in the one- and two-dimensional tight-binding Anderson model with diagonal disorder. We find that the distributions of the local wave function amplitudes at fixed…

Disordered Systems and Neural Networks · Physics 2009-11-07 Jan W. Kantelhardt , Armin Bunde

The one-parameter scaling theory of localization predicts that all states in a disordered two-dimensional system with broken time reversal symmetry are localized even in the presence of strong spin-orbit coupling. While at constant strong…

Disordered Systems and Neural Networks · Physics 2017-06-27 Ying Su , C. Wang , Y. Avishai , Yigal Meir , X. R. Wang

We investigate the transport properties of two strongly coupled ballistic one-dimensional (1D) wires, defined by a split-gate structure deposited on a GaAs/AlGaAs double quantum well. Matching the widths and electron densities of the two…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 K. J. Thomas , J. T. Nicholls , M. Y. Simmons , W. R. Tribe , A. G. Davies , M. Pepper

We study delocalization transition in a one-dimensional electron system with quenched disorder by using supersymmetric (SUSY) methods. Especially we focus on effects of nonlocal correlation of disorder, for most of studies given so far…

Disordered Systems and Neural Networks · Physics 2009-10-31 Ikuo Ichinose , Masaomi Kimura

We report a comprehensive x-ray scattering study of charge density wave (stripe) ordering in $\rm La_{2-x}Ba_xCuO_4 (x \approx 1/8)$, for which the superconducting $T_c$ is greatly suppressed. Strong superlattice reflections corresponding…

Superconductivity · Physics 2009-11-13 Young-June Kim , G. D. Gu , T. Gog , D. Casa

The density functional theory is used to study the electronic structure of a quantum wire in a magnetic field. In a GaAs quantum wire, a critical density has been found, below which the electron density has a strong spatial inhomogeneity.…

Mesoscale and Nanoscale Physics · Physics 2022-12-29 A. A. Vasilchenko

The domain morphology of weakly disordered ferromagnets, quenched from the high-temperature phase to the low-temperature phase, is studied using numerical simulations. We find that the geometrical properties of the coarsening domain…

Disordered Systems and Neural Networks · Physics 2009-11-13 Alberto Sicilia , Jeferson J. Arenzon , Alan J. Bray , Leticia F. Cugliandolo

We theoretically investigate the effects of the weak magnetization on the local density of states of mesoscopic proximity structures, where two superconducting terminals are attached to a side surface of the diffusive ferromagnet wire with…

Superconductivity · Physics 2023-10-05 Shu-Ichiro Suzuki , Alexander A. Golubov , Yasuhiro Asano , Yukio Tanaka

We study the Landau level localization and scaling properties of a disordered two-dimensional electron gas in the presence of a strong external magnetic field. The impurities are treated as random distributed scattering centers with…

Condensed Matter · Physics 2009-10-22 Dongzi Liu , S. Das Sarma

The analytical approach developed by us for the calculation of the phase diagram for the Anderson localization via disorder [J.Phys.: Condens. Matter 14, 13777 (2002)] is generalized here to the case of a strong magnetic field when $q$…

Disordered Systems and Neural Networks · Physics 2008-06-12 V N Kuzovkov

We consider two-dimensional degenerate electron gas in the presence of perpendicular random magnetic field. The magnetic field disorder which is assumed to be gaussian is characterized by two parameters. The first is proportional to the…

Disordered Systems and Neural Networks · Physics 2008-02-03 A. Lusakowski , L. A. Turski

We study numerically the effects of short- and long-range correlations on the localization properties of the eigenstates in a one-dimensional disordered lattice characterized by a random non-Hermitian Hamiltonian, where the imaginary part…

Disordered Systems and Neural Networks · Physics 2020-06-05 Ba Phi Nguyen , Thi Kim Thoa Lieu , Kihong Kim

The weak localization correction to the conductivity in coupled double layer structures is studied both experimentally and theoretically. Statistics of closed paths has been obtained from the analysis of magnetic field and temperature…

Disordered Systems and Neural Networks · Physics 2009-10-31 G. M. Minkov , A. V. Germanenko , O. E. Rut , O. I. Khrykin , V. I. Shashkin , V. M. Danil'tsev