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相关论文: Tunneling anisotropic magnetoresistance and spin-o…

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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

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 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 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 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 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

We observe spin-valve-like effects in nano-scaled thermally evaporated Co/AlOx/Au tunnel junctions. The tunneling magnetoresistance is anisotropic and depends on the relative orientation of the magnetization direction of the Co electrode…

科普物理 · 物理学 2015-05-13 R. S. Liu , L. Michalak , C. M. Canali , L. Samuelson , H. Pettersson

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

We investigated spin dependent transport through Fe/GaAs/Fe tunnel junctions. The tunneling magnetoresistance effect (TMR) was probed for different types of Fe/GaAs interfaces. For interfaces cleaned by hydrogen plasma the TMR effect is…

介观与纳米尺度物理 · 物理学 2009-11-11 J. Moser , M. Zenger , C. Gerl , D. Schuh , R. Meier , P. Chen , G. Bayreuther , W. Wegscheider , D. Weiss , C. -H. Lai , R. -T. Huang , M. Kosuth , H. Ebert

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

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

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

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…

介观与纳米尺度物理 · 物理学 2020-08-26 Chenghao Shen , Timothy Leeney , Alex Matos-Abiague , Benedikt Scharf , Jong E. Han , Igor Zutic

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

Based on general symmetry considerations we investigate how the dependence of the tunneling anisotropic magnetoresistance (TAMR) on the magnetization direction is determined by the specific form of the spin-orbit coupling field. By…

介观与纳米尺度物理 · 物理学 2009-04-17 A. Matos-Abiague , M. Gmitra , J. Fabian

We report observations of tunneling anisotropic magnetoresitance (TAMR) in vertical tunnel devices with a ferromagnetic multilayer-(Co/Pt) electrode and a non-magnetic Pt counter-electrode separated by an AlOx barrier. In stacks with the…

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

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

We report the discovery of a super-giant tunneling anisotropic magnetoresistance in an epitaxially grown (Ga,Mn)As/GaAs/(Ga,Mn)As structure. The effect arises from a strong dependence of the electronic structure of ferromagnetic…

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