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We compute the non-Drude part of the conductivity tensor in planar Hall set-ups, for tilted Weyl and multi-Weyl semimetals, considering both the type-I and type-II phases. We do so in three distinct set-ups, taking into account the possible…

Mesoscale and Nanoscale Physics · Physics 2025-09-05 Ipsita Mandal

Magnetoresistive effects are typically symmetric under magnetization reversal. However, nonlinear spin transport can give rise to unidirectional magnetoresistance in systems with strong spin-orbit interaction and broken inversion symmetry.…

Materials Science · Physics 2026-01-29 Xue He , Hans Gløckner Giil , Caiqiong Xu , Jicheng Wang , Arne Brataas , Jinbo Yang , Yanglong Hou , Rui Wu , Shilei Ding

The component of the resistivity tensor $\rho_{ij}$ corresponding to voltage transverse to both an applied current and a magnetic field can be separated into odd and even parts with respect to the applied magnetic field. The former contains…

The large tunneling anisotropic magneto-resistance of a single $p^{++}$-(Ga,Mn)As/$n^{+}$-GaAs Zener-Esaki diode is evidenced in a perpendicular magnetic field over a large temperature and voltage range. Under an applied bias, the tunnel…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 R. Giraud , M. Gryglas , L. Thevenard , A. Lemaître , G. Faini

The problem of determining the effective conductivity tensor of a magnetoactive turbulent plasma is considered in the approximation of isolated particles. Additional gyrotropicterms are shown to appear in the conductivity tensor in the…

Plasma Physics · Physics 2009-11-10 Otto G. Chkhetiani

The synthesis of one-dimensional van der Waals heterostructures was realized recently, which opens up new possibilities for prospective applications in electronics and optoelectronics. The even reduced dimension will enable novel properties…

Mesoscale and Nanoscale Physics · Physics 2026-02-06 Ya Feng , Henan Li , Taiki Inoue , Shohei Chiashi , Slava V. Rotkin , Rong Xiang , Shigeo Maruyama

We have pointed out the possibility of quantum Hall effect or quantum patterns of transportation in a degenerate strongly magnetized quark matter, which might be expected inside a highly dense compact star. An anisotropic pattern of…

High Energy Physics - Phenomenology · Physics 2021-03-30 Jayanta Dey , Aritra Bandyopadhyay , Akash Gupta , Naman Pujari , Sabyasachi Ghosh

We use a van-der-Waals pickup technique to fabricate different heterostructures containing WSe$_2$(WS$_2$) and graphene. The heterostructures were structured by plasma etching, contacted by one-dimensional edge contacts and a topgate was…

Mesoscale and Nanoscale Physics · Physics 2017-09-14 Tobias Völkl , Tobias Rockinger , Martin Drienovsky , Kenji Watanabe , Takashi Taniguchi , Dieter Weiss , Jonathan Eroms

We demonstrate the presence of an important anisotropic magnetoresistance contribution to the domain wall resistance recently measured in thin-film (Ga,Mn)As with in-plane magnetic anisotropy. Analytic results for simple domain wall…

Materials Science · Physics 2009-11-11 H. G. Roberts , S. Crampin , S. J. Bending

We study the electron/hole transport in puddle-disordered and rough graphene samples which are subject to in-plane magnetic fields. Previous treatments, mostly devoted to regimes where the electron/hole scattering wavelengths are larger…

Mesoscale and Nanoscale Physics · Physics 2015-04-15 R. R. Brandão , L. Moriconi

The electric magnetochiral anisotropy is a nonreciprocal phenomenon accessible via second harmonic transport in noncentrosymmetric, time-reversal invariant materials, in which the rectification of current, ${\bf I}$, can be controlled by an…

We report the fabrication of perpendicular ferromagnetic electrodes for tunneling devices consist of van der Waals heterostructure. We found MgO/Co/Pt films on Hexagonal BN shows perpendicular magnetic anisotropy (PMA) with the easy axis…

Mesoscale and Nanoscale Physics · Physics 2017-10-31 H. Idzuchi , T. Taniguchi , K. Watanabe , P. Kim

A general discussion of the simulation procedure of the full susceptibility tensor and isothermal magnetization pseudovector for compounds comprising weakly-interacting magnetic centers is presented. A single-crystal-sample as well as a…

Other Condensed Matter · Physics 2013-12-10 R. Pelka

We study the transport properties of a 2D electron gas in narrow GaAs quantum wells with AlAs/GaAs superlattice barriers. It is shown that the anisotropic positive magnetoresistance observed in selectively doped semiconductor structures in…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 A. V. Goran , A. A. Bykov , A. K. Bakarov , J. C. Portal

The magnetorotational instability is thought to play an important role in enabling accretion in sufficiently ionized astrophysical disks. The rate at which MRI-driven turbulence transports angular momentum is related to both the strength of…

Solar and Stellar Astrophysics · Physics 2015-10-26 Gareth C. Murphy , Martin E. Pessah

The effect of suppression of static magnetization of an anisotropic hard superconductor by alternating magnetic field is analyzed theoretically. The magnetic moment suppression dynamics is described with respect to the magnetization loop of…

Superconductivity · Physics 2007-05-23 Alex Levchenko

Conductive organic polymers can be formulated with polymers that incorporate fine dispersed metallic particles. In this work, we present a general model for ferrogels which are chemically cross-linked polymer networks swollen with a…

Chemical Physics · Physics 2016-09-08 J. P. Huang

Low-temperature, electronic transport in Landau levels N>1 of a two-dimensional electron system is strongly anisotropic. At half-filling of either spin level of each such Landau level the magnetoresistance either collapses to form a deep…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 R. R. Du , D. C. Tsui , H. L. Stormer , L. N. Pfeiffer , K. W. Baldwin , K. W. West

Layered materials are promising candidates for spintronic applications due to their unique electronic structures and spin transport properties. However, the strong anisotropic conductivity inherent in these materials complicates the…

Mesoscale and Nanoscale Physics · Physics 2026-03-05 Ryoya Nakamura , Futo Tokuda , Yoshinobu Ono , Nan Jiang , Hideaki Sakai , Masayuki Ochi , Hiroaki Ishizuka , Yasuhiro Niimi

We reveal that the interplay between Rashba spin-orbit coupling and proximity-induced magnetization in a two-dimensional electron gas leads to peculiar transport properties and large anisotropy of magnetoresistance. While the related…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Chenghao Shen , Timothy Leeney , Alex Matos-Abiague , Benedikt Scharf , Jong E. Han , Igor Zutic