English
Related papers

Related papers: Anisotropic magnetoresistance in nanocontacts

200 papers

We instigate the angle-dependent magnetoresistance (AMR) of the layered nodal-line Dirac semimetal ZrSiS for the in-plane and out-of-plane current directions. This material has recently revealed an intriguing butterfly-shaped in-plane AMR…

We performed a first-principles study of the tunneling anisotropic magneto-resistance (TAMR) in Ag(Ir,Pt)$/$MgO$/$Fe junctions. Enhanced TAMR with ideal and skewed fourfold angular dependence is found in-plane and out-of-plane TAMR of the…

Applied Physics · Physics 2022-09-21 Hui-Min Tang , Shi-zhuo Wang , Xin-tao Jia

High-order anisotropic magnetoresistance (AMR) is observed up to the 18th harmonic in cubic Fe(001) thin films, overturning the long-standing paradigm that only two- and four-fold terms are symmetry-allowed. Using angle-resolved transport…

Other Condensed Matter · Physics 2025-12-25 Haoran Chen , Yue Chen , Yizi Feng , Ruda Guo , Yuanfei Fan , Hongyue Xu , Tong Wu , Zhongxun Guo , Di Yue , Xiaofeng Jin , Yi Liu , Zhe Yuan , Yizheng Wu

Experimental measurements show that the angular dependence of the anisotropic magnetoresistance (AMR) in L1$_0$ ordered FePt epitaxial films on the current orientation and magnetization direction is a superposition of the corresponding…

Materials Science · Physics 2022-06-17 Y. Dai , Y. W. Zhao , L. Ma , M. Tang , X. P. Qiu , Y. Liu , Z. Yuan , S. M. Zhou

Our experimental and theoretical study of the non-crystalline and crystalline components of the anisotropic magnetoresistance (AMR) in (Ga,Mn)As is aimed at exploring the basic physical aspects of this relativistic transport effect. The…

Antiferromagnets have been generating intense interest in the spintronics community, owing to their intrinsic appealing properties like zero stray field and ultrafast spin dynamics. While the control of antiferromagnetic (AFM) orders has…

Materials Science · Physics 2019-06-11 Haowen Wang , Chengliang Lu , Jun Chen , Yong Liu , S. L. Yuan , Sang-Wook Cheong , Shuai Dong , Jun-Ming Liu

We study the tunnel magnetoresistance (TMR) effect and magnetocrystalline anisotropy in a series of magnetic tunnel junctions (MTJs) with $L1_1$-ordered fcc ferromagnetic alloys and MgO barrier along the [111] direction. Considering the…

Materials Science · Physics 2021-02-24 Keisuke Masuda , Hiroyoshi Itoh , Yoshiaki Sonobe , Hiroaki Sukegawa , Seiji Mitani , Yoshio Miura

Memory effects can have a profound impact on the resistivity of semiconductor systems, resulting in giant negative magnetoresistance and MIRO phenomena. This work opens the discussion of the memory effects in 3D conducting systems featured…

Mesoscale and Nanoscale Physics · Physics 2021-08-11 K. S. Denisov , K. A. Baryshnikov , P. S. Alekseev , N. S. Averkiev

Understanding the magnetoresistance (MR) of a magnetic material forms the basis for uncovering the orbital mechanisms and charge-spin interactions in the system. Although the parent state of iron-based high-temperature superconductors,…

We report the observation of tunneling anisotropic magnetoresistance effect (TAMR) in the epitaxial metal-semiconductor system Fe/GaAs/Au. The observed two-fold anisotropy of the resistance can be switched by reversing the bias voltage,…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 J. Moser , A. Matos-Abiague , D. Schuh , W. Wegscheider , J. Fabian , D. Weiss

We present microscopic results on the giant tunneling magnetoresistance that arises from the nanoscale coexistence of ferromagnetic metallic (FMM) and antiferromagnetic insulating (AFI) clusters in a disordered two dimensional electron…

Disordered Systems and Neural Networks · Physics 2009-11-11 Sanjeev Kumar , Chandra Shekhar Mohapatra , Pinaki Majumdar

The independent control of two magnetic electrodes and spin-coherent transport in magnetic tunnel junctions are strictly required for tunneling magnetoresistance, while junctions with only one ferromagnetic electrode exhibit tunneling…

Temperature-dependent resistivity and magnetoresistance are measured in bulk tetragonal phase of antiferromagnetic CuMnAs and the latter is found to be anisotropic both due to structure and magnetic order. We compare these findings to model…

We predict a huge anisotropic thermal magnetoresistance (ATMR) in the near-field radiative heat transfer between magneto-optical particles when the direction of an external magnetic field is changed with respect to the heat current…

Antiferromagnetic spintronics is an emerging field; antiferromagnets can improve the functionalities of ferromagnets with higher response times, and having the information shielded against external magnetic field. Moreover, a large list of…

A quasiclassical theory of giant magnetoresistance in nanoscale point contacts between different ferromagnetic metals is developed. The contacts were sorted by three types of mutual positions of the conduction spin-subband bottoms which are…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. N. Useinov , R. G. Deminov , L. R. Tagirov , G. Pan

Large magnetoresistance effect controlled by electric field rather than magnetic field or electric current is a preferable routine for designing low power consumption magnetoresistance-based spintronic devices. Here we propose an…

Mesoscale and Nanoscale Physics · Physics 2019-10-23 Yurong Su , Jia Zhang , Jing-Tao Lü , Jeongmin Hong , Long You

Many of the most interesting and technologically important electronic materials discovered in the past two decades have two common features: a layered crystal structure and strong interactions between electrons. Two of the most fundamental…

Strongly Correlated Electrons · Physics 2009-11-11 Malcolm P. Kennett , Ross H. McKenzie

The magnetoresistance (MR) and the magnetization isotherms were studied up to high magnetic fields at T = 3 K and 300 K for a microcrystalline ($\mu$c) Ni foil corresponding to bulk Ni and for a nanocrystalline (nc) Ni foil. At T = 3 K, for…

Materials Science · Physics 2022-08-12 I. Bakonyi , F. D. Czeschka , L. F. Kiss , V. A. Isnaini , A. T. Krupp , K. Palotás , S. Zsurzsa , L. Péter

We report on the structural, electric and magnetic properties of $(\mathrm{Ni}_x\mathrm{Co}_{1-x})\mathrm{B}$ ferromagnetic nanotubes, displaying azimuthal magnetization. The tubes are fabricated using electroless plating in polycarbonate…