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We study the evolution of low-temperature magnetoresistance in double quantum wells in the region below 1 Tesla as the applied current density increases. A flip of the magneto-intersubband oscillation peaks, which occurs as a result of the…

介观与纳米尺度物理 · 物理学 2015-05-13 N. C. Mamani , G. M. Gusev , O. E. Raichev , T. E. Lamas , A. K. Bakarov

Explicit expressions for magnetoresistance $R$ of planar and layered strongly inhomogeneous two-phase systems are obtained, using exact dual transformation, connecting effective conductivities of in-plane isotropic two-phase systems with…

无序系统与神经网络 · 物理学 2009-11-11 S. A. Bulgadaev , F. V. Kusmartsev

We address Coulomb drag and near-field heat transfer in a double-layer system of incoherent metals. Each layer is modeled by an array of tunnel-coupled SYK dots with random inter-layer interactions. Depending on the strength of intra-dot…

强关联电子 · 物理学 2023-09-08 A. L. Chudnovskiy , Alex Levchenko , Alex Kamenev

This paper is concerned with the weak-moment magnetism in heavy-fermion materials and its relation to the non-Fermi liquid physics observed near the transition to the Fermi liquid. We explore the hypothesis that the primary fluctuations…

强关联电子 · 物理学 2007-05-23 T. Senthil , Matthias Vojta , Subir Sachdev

Recent renewed interest in layered transition metal dichalcogenides stems from the exotic electronic phases predicted and observed in the single- and few-layer limit. Realizing these electronic phases requires preserving the desired…

材料科学 · 物理学 2016-06-21 J. M. Woods , J. Shen , P. Kumaravadivel , Y. Pang , Y. Xie , G. A. Pan , M. Li , E. I. Altman , L. Lu , J. J. Cha

We present the theory of the inplane magnetoresistance in two-dimensional massless Dirac fermion systems including the Zeeman splitting and the electron-electron interaction effect on the Landau level broadening within a random phase…

介观与纳米尺度物理 · 物理学 2010-11-23 Takao Morinari , Takami Tohyama

We study the effect of electron-electron interaction on the surface resistivity of three-dimensional (3D) topological insulators. In the absence of umklapp scattering, the existence of the Fermi-liquid ($T^2$) term in resistivity of a…

材料科学 · 物理学 2016-03-08 H. K. Pal , V. I. Yudson , D. L. Maslov

Quantum coherence of electrons interacting via the magnetostatic coupling and confined to a mesoscopic cylinder is discussed. The electromagnetic response of a system is studied. It is shown that the electromagnetic kernel has finite low…

介观与纳米尺度物理 · 物理学 2009-10-30 M. Stebelski , M. Lisowski , E. Zipper

Since the Lorentz force is perpendicular to the magnetic field, it should not affect the motion of a charge along the field. This argument seems to imply absence of longitudinal magnetoresistance (LMR) which is, however, observed in many…

介观与纳米尺度物理 · 物理学 2015-05-18 H. K. Pal , D. L. Maslov

Magnetic topological insulators (MnBi$_2$Te$_4$)(Bi$_2$Te$_3$)$_n$ were anticipated to exhibit magnetic energy gaps while recent spectroscopic studies did not observe them. Thus, magnetism on the surface is under debate. In this work, we…

材料科学 · 物理学 2022-10-31 Hengxin Tan , Daniel Kaplan , Binghai Yan

It is proposed that the presence of a tilted and anisotropic Dirac cone can be verified using the interlayer magnetoresistance in the layered Dirac fermion system, which is realized in quasi-two-dimensional organic compound…

材料科学 · 物理学 2009-11-13 Takao Morinari , Takahiro Himura , Takami Tohyama

We analyze the out of plane hopping in models of layered systems where the in--plane properties deviate from Landau's theory of a Fermi liquid. We show that the hopping term acquires a non trivial energy dependence, due to the coupling to…

强关联电子 · 物理学 2009-11-07 Maria A. H. Vozmediano , M. Pilar Lopez Sancho , Francisco Guinea

We calculate the interaction kernel K for two-dimensional diffusive electrons. The screening of the Coulomb interaction together with the Fermi statistics induces a spin selection rule for electron-electron scattering so that in leading…

介观与纳米尺度物理 · 物理学 2007-05-23 Philippe Jacquod

We develop a hydrodynamic description of electron magnetotransport in conductors without Galilean invariance in the presence of a weak long-range disorder potential. We show that magnetoresistance becomes strong (of order 100 %) at…

介观与纳米尺度物理 · 物理学 2024-02-05 Alex Levchenko , Songci Li , A. V. Andreev

The existence of helical surface states in a bulk insulator, with anomalous magneto-electric properties, is a remarkable new development in solid state physics. The linear dispersion of the the fermions leads to a form of Lorentz…

材料科学 · 物理学 2012-07-10 Huazhou Wei , Sung-Po Chao , Vivek Aji

The detailed derivation of a theory for transport in quasi-two-dimensional metals, with small-angle elastic scattering and angle-independent inelastic scattering is presented. The transport equation is solved for a model Fermi surface…

强关联电子 · 物理学 2009-11-10 Elihu Abrahams , C. M. Varma

We report detailed study of angular-dependent magnetoresistance (AMR) with tilting angel $\theta$ from $c$-axis ranging from 0$^\circ$ to 360$^\circ$ on a high-quality FeSe single crystal. A pronounced AMR with twofold symmetry is observed,…

超导电性 · 物理学 2016-10-12 Yue Sun , Tatsuhiro Yamada , Sunseng Pyon , Tsuyoshi Tamegai

Understanding the magnetotransport behaviors in topological systems remains alluring, as a lot of intrinsic information could be extracted, e.g., the band structures, Berry phase, Fermi surface, carrier density, and so on. Motivated by the…

介观与纳米尺度物理 · 物理学 2026-05-08 Rui Min , Yi-Xiang Wang

In a bilayer consisting of an insulator (I) and a ferromagnetic metal (FM), interfacial spin orbit scattering leads to spin mixing of the two conducting channels of the FM, which results in an unconventional anisotropic magnetoresistance…

介观与纳米尺度物理 · 物理学 2015-12-15 Steven S. -L. Zhang , Giovanni Vignale , Shufeng Zhang

The interplay between electronic transport and antiferromagnetic order has attracted a surge of interest as recent studies have shown that a moderate change in the spin orientation of a collinear antiferromagnet may have a significant…