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相关论文: Tunneling anisotropic magnetoresistance of NiFe/Ir…

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We report the observation of tunneling anisotropic magnetoresistance (TAMR) in an organic spin-valve-like structure with only one ferromagnetic electrode. The device is based on a new high mobility perylene diimide-based n-type organic…

材料科学 · 物理学 2013-05-29 M. Gruenewald , M. Wahler , M. Michelfeit , C. Gould , R. Schmidt , F. Wuerthner , G. Schmidt , L. W. Molenkamp

Antiferromagnetic (AFM) materials are a pathway to spintronic memory and computing devices with unprecedented speed, energy efficiency, and bit density. Realizing this potential requires AFM devices with simultaneous electrical writing and…

A spin valve is a prototype of spin-based electronic devices found on ferromagnets, in which an antiferromagnet plays a supporting role. Recent findings in antiferromagnetic spintronics show that an antiferromagnetic order in single-phase…

Collinear antiferromagnetic (AFM) materials have unique promise of no stray fields, display ultrafast dynamics, and being robust against perturbation filed which motivates the extensive research of antiferromagnetic spintronics. However,…

The spin filtering effect, distinct decaying lengths experienced by oppositely spin-polarized electrons in a magnetic barrier, generally occurs in ferromagnetic (FM) insulators or semiconductors. With the rise of altermagnetic (ALM)…

材料科学 · 物理学 2025-01-08 Boyuan Chi , Leina Jiang , Yu Zhu , Guoqiang Yu , Caihua Wan , Xiufeng Han

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,…

介观与纳米尺度物理 · 物理学 2009-11-11 J. Moser , A. Matos-Abiague , D. Schuh , W. Wegscheider , J. Fabian , D. Weiss

We introduce a new class of spintronics devices in which a spin-valve like effect results from strong spin-orbit coupling in a single ferromagnetic layer rather than from injection and detection of a spin-polarized current by two coupled…

介观与纳米尺度物理 · 物理学 2009-11-10 C. Gould , C. Rüster , T. Jungwirth , E. Girgis , G. M. Schott , R. Giraud , K. Brunner , G. Schmidt , L. W. Molenkamp

Antiferromagnetic (AFM) spintronics has emerged as a subfield of spintronics driven by the advantages of antiferromagnets producing no stray fields and exhibiting ultrafast magnetization dynamics. The efficient method to detect an AFM order…

Magnetic tunnel junctions (MTJs) are the key building blocks of high-performance spintronic devices. While conventional MTJs rely on ferromagnetic (FM) materials, employing antiferromagnetic (AFM) compounds can significantly increase…

Recent studies on the electrical switching of tetragonal antiferromagnet (AFM) via N{\'e}el spin-orbit torque have paved the way for the economic use of antiferromagnetic materials. The most difficult obstacle that presently limits the…

材料科学 · 物理学 2020-02-04 Xing-Tao Jia , Xiao-Lin Cai , Yu Jia

Spintronic devices based on antiferromagnetic (AFM) materials hold the promise of fast switching speeds and robustness against magnetic fields. Different device concepts have been predicted and experimentally demonstrated, such as…

Antiferromagnetic (AFM) spintronics, where magneto-transport is governed by an antiferromagnet instead of a ferromagnet, opens fascinating new perspectives for both fundamental research and device technology, owing to their intrinsic…

材料科学 · 物理学 2021-10-26 Haowen Wang , Wei Wang , Ni Hu , Tianci Duan , Songliu Yuan , Shuai Dong , Chengliang Lu , Jun-Ming Liu

The effects of the spin-orbit interaction on the tunneling magnetoresistance of ferromagnet/semiconductor/normal metal tunnel junctions are investigated. Analytical expressions for the tunneling anisotropic magnetoresistance (TAMR) are…

介观与纳米尺度物理 · 物理学 2009-05-06 Alex Matos-Abiague , Jaroslav Fabian

The tunnelling anisotropic magnetoresistance (TAMR) effect describes the sensitivity of spin-polarized electron transport to the orientation of the magnetization with respect to the crystallographic axes. As the TAMR effect requires only a…

材料科学 · 物理学 2015-06-19 Nuala M. Caffrey , Silke Schröder , Paolo Ferriani , Stefan Heinze

The novel electronic state of the canted antiferromagnetic (AFM) insulator, strontium iridate (Sr2IrO4) has been well described by the spin-orbit-entangled isospin Jeff = 1/2, but the role of isospin in transport phenomena remains poorly…

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 model of a spin valve in which electron transport between the magnetized electrodes is due to multistep tunneling is analyzed. Motivated by recent experiments on organic spin valves, we assume that spin memory loss in the course of…

介观与纳米尺度物理 · 物理学 2015-06-16 R. C. Roundy , M. E. Raikh

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…

介观与纳米尺度物理 · 物理学 2019-10-23 Yurong Su , Jia Zhang , Jing-Tao Lü , Jeongmin Hong , Long You

We theoretically investigate the angular and spin dependent transport in normal-metal/helical-multiferroic/ferromagnetic heterojunctions. We find a tunneling anisotropic magnetoresistance (TAMR) effect due to the spiral magnetic order in…

介观与纳米尺度物理 · 物理学 2015-05-18 Chenglong Jia , Jamal Berakdar

We employ the recently discovered antiferromagnetic tunneling anisotropic magnetoresistance to study the behavior of antiferromagnetically ordered moments in IrMn exchange coupled to NiFe. Experiments performed by common laboratory tools…

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