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相关论文: Resonant Tunneling Anisotropic Magnetoresistance I…

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First-principles calculations of electron tunneling transport in Ni and Co break junctions reveal strong dependence of the conductance on the magnetization direction, an effect known as tunneling anisotropic magnetoresistance (TAMR). The…

介观与纳米尺度物理 · 物理学 2014-06-06 J. D. Burton , R. F. Sabirianov , J. P. Velev , O. N. Mryasov , E. Y. Tsymbal

The effects of the spin-orbit interaction on the tunneling magnetoresistance of magnetic tunnel junctions are investigated. A model in which the experimentally observed two-fold symmetry of the anisotropic tunneling magnetoresistance (TAMR)…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Matos-Abiague , J. Fabian

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

We study anisotropic magnetoresistance (AMR) in a spin-polarized two-dimensional electron gas with Rashba spin-orbit coupling and nonmagnetic disorder collision. We show that AMR exists, arising from the combined effect of in-plane…

介观与纳米尺度物理 · 物理学 2009-11-05 C. M. Wang , M. Q. Pang

We report a large tunneling anisotropic magnetoresistance (TAMR) in a thin (Ga,Mn)As epilayer with lateral nanoconstrictions. The observation establishes the generic nature of this effect, which originates from the spin-orbit coupling in a…

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

Tunneling anisotropic magnetoresistance (TAMR) effect, discovered recently in (Ga,Mn)As ferromagnetic semiconductors, arises from spin-orbit coupling and reflects the dependence of the tunneling density of states in a ferromagnetic layer on…

材料科学 · 物理学 2009-11-11 A. B. Shick , F. Maca , J. Masek , T. Jungwirth

Fully-relativistic first-principles calculations of the Fe(001) surface demonstrate that resonant surface (interface) states may produce sizeable tunneling anisotropic magnetoresistance in magnetic tunnel junctions with a single magnetic…

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…

应用物理 · 物理学 2022-09-21 Hui-Min Tang , Shi-zhuo Wang , Xin-tao Jia

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 report experiments on epitaxially grown Fe/GaAs/Au tunnel junctions demonstrating that the tunneling anisotropic magnetoresistance (TAMR) effect can be controlled by a magnetic field. Theoretical modelling shows that the interplay of the…

介观与纳米尺度物理 · 物理学 2009-09-28 M. Wimmer , M. Lobenhofer , J. Moser , A. Matos-Abiague , D. Schuh , W. Wegscheider , J. Fabian , K. Richter , D. Weiss

We investigated the tunneling anisotropic magnetoresistance (TAMR) in thick hcp Co films at cryogenic temperatures using scanning tunneling microscopy. At around -350 mV, a strong TAMR up to 30\% is found with a characteristic voltage…

介观与纳米尺度物理 · 物理学 2018-07-04 Marie Hervé , Timofey Balashov , Arthur Ernst , Wulf Wulfhekel

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

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

Using a simple quantum-mechanical model, we explore a tunneling anisotropic magnetoresistance (TAMR) effect in ferroelectric tunnel junctions (FTJs) with a ferromagnetic electrode and a ferroelectric barrier layer, which spontaneous…

介观与纳米尺度物理 · 物理学 2019-09-04 A. Alexandrov , M. Ye. Zhuravlev , Evgeny Y. Tsymbal

Results of first-principles calculations of the Fe/GaAs/Ag(001) epitaxial tunnel junctions reveal that hybridization of interface resonances formed at both interfaces can enhance the tunnelling anisotropic magnetoresistance (TAMR) of the…

材料科学 · 物理学 2012-09-28 Rudolf Sykora , Ilja Turek

We theoretically investigate quantum transport through single-molecule magnet (SMM) junctions with ferromagnetic and normal-metal leads in the sequential regime. The current obtained by means of the rate-equation gives rise to the tunneling…

介观与纳米尺度物理 · 物理学 2015-06-05 Haiqing Xie , Qiang Wang , Hujun Jiao , J. -Q. Liang

Magnetotunnelling spectroscopy of resonant tunnelling structures provides information on the nature of the two-dimensional electron gas in the well. We describe a model based on nonequilibrium Green's functions that allows for a…

介观与纳米尺度物理 · 物理学 2015-05-28 Goran Isić , Dragan Indjin , Vitomir Milanović , Jelena Radovanović , Zoran Ikonić , Paul Harrison

We consider a two-dimensional magnetic tunnel junction of the FM/I/QW(FM+SO)/I/N structure, where FM, I and QW(FM+SO) stand for a ferromagnet, an insulator and a quantum wire (QW) with both magnetic ordering and Rashba spin-orbit (SOC),…

介观与纳米尺度物理 · 物理学 2015-07-24 Seungju Han , Llorens Serra , Mahn-Soo Choi

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
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