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相关论文: Giant strain-induced spin splitting effect in MnTe…

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We present a theory for two recent experiments in bulk strained semiconductors \cite{kato1, kato2} and show that a new, previously overlooked, strain spin-orbit coupling term may play a fundamental role. We propose simple experiments that…

其他凝聚态物理 · 物理学 2009-11-10 B. Andrei Bernevig , Shou-Cheng Zhang

We study spin-polarized quasiparticle transport in a mesoscopic superconductor with a spin- splitting field in the presence of co-flowing supercurrent. In such a system, the nonequilibrium state is characterized by charge, spin, energy and…

超导电性 · 物理学 2018-08-01 Faluke Aikebaier , Mihail A. Silaev , T. T. Heikkilä

Junctions composed of two crossed graphene nanoribbons (GNRs) have been theoretically proposed as electron beam splitters where incoming electron waves in one GNR can be split coherently into propagating waves in \emph{two} outgoing…

介观与纳米尺度物理 · 物理学 2022-07-13 Sofia Sanz , Nick Papior , Géza Giedke , Daniel Sánchez-Portal , Mads Brandbyge , Thomas Frederiksen

Newly discovered altermagnets are magnetic materials exhibiting both compensated magnetic order, similar to antiferromagnets, and simultaneous non-relativistic spin-splitting of the bands, akin to ferromagnets. This characteristic arises…

Recently, altermagnetic materials have become rather attractive because such materials showcase combined advantages of ferromagnets (e.g., spin current) and antiferromagnets (e.g., low stray field and ultrafast spin dynamics). Symmetry…

材料科学 · 物理学 2025-12-19 Yahui Zhai , Longju Yu , Jian Lv , Wei Zhang , Hong Jian Zhao

While the helical character of the edge channels responsible for charge transport in the quantum spin Hall regime of a two-dimensional topological insulator is by now well established, an experimental confirmation that the transport in the…

Magnetism-driven nonrelativistic spin splittings (NRSS) are promising for highly efficient spintronics applications. Although 2D centrosymmetric (in four-dimensional spacetime) antiferromagnets are abundant, they have not received extensive…

材料科学 · 物理学 2024-04-02 Sajjan Sheoran , Saswata Bhattacharya

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

Semiconductor spintronics will need to control spin injection phenomena in the non-linear regime. In order to study these effects we have performed spin injection measurements from a dilute magnetic semiconductor [(Zn,Be,Mn)Se] into…

介观与纳米尺度物理 · 物理学 2007-05-23 G. Schmidt , C. Gould , P. Grabs , A. M. Lunde , G. Richter , A. Slobodskyy , L. W. Molenkamp

A WSe$_2$ monolayer shows many interesting properties due to its spin-orbit coupling induced spin splitting in bands around the Fermi level and the spin-valley configuration. The orientation of the spin polarization in the relevant bands is…

材料科学 · 物理学 2022-11-02 Hong Tang , Santosh Neupane , Li Yin , Jason M. Breslin , Adrienn Ruzsinszky

Spin injection in high-quality epitaxial Mn5Ge3 Schottky contacts on n-type Ge has been investigated using a three-terminal Hanle effect measurement. Clear Hanle and inverted Hanle signals with features characteristic of spin accumulation…

介观与纳米尺度物理 · 物理学 2015-06-23 A. Spiesser , H. Saito , R. Jansen , S. Yuasa , K. Ando

The Stern-Gerlach (SG) effect is well known as the spin-dependent splitting of a beam of atoms carrying magnetic moments by a magnetic-field gradient, leading to the concept of electron spin. Antiferromagnets can accommodate two magnon…

介观与纳米尺度物理 · 物理学 2022-07-01 Zhenyu Wang , Weiwei Bao , Yunshan Cao , Peng Yan

Topological insulators (TIs) hold promise as a platform for spintronics applications due to the fascinating spin-momentum locking (SML) of the surface states. One particular interest lies in using TIs as spin-polarized sources for…

介观与纳米尺度物理 · 物理学 2022-08-25 Chuanchang Zeng , Xiao-Qin Yu , Zhi-Ming Yu , Yugui Yao

We report experimental evidence of excitonic spin-splitting, in addition to the conventional Zeeman effect, produced by a combination of the Rashba spin-orbit interaction, Stark shift and charge screening. The electric-field-induced…

We provide a systematic quantitative description of spin polarization in armchair and zigzag graphene nanoribbons in a perpendicular magnetic field. We first address spinless electrons within the Hartree approximation studying the evolution…

介观与纳米尺度物理 · 物理学 2015-06-05 S. Ihnatsenka , I. V. Zozoulenko

Doped ZnO is a promising material for spintronics applications. For such applications, it is important to understand the spin dynamics and particularly the spin coherence of this II-VI semiconductor. The spin lifetime $\tau_{s}$ has been…

材料科学 · 物理学 2009-11-13 N. J. Harmon , W. O. Putikka , R. Joynt

We report the synthesis and magnetic characterization of WFeB and identify it as a metallic d-wave altermagnet representative of a broader TiNiSi-type family. Neutron diffraction, M\"ossbauer spectroscopy, and magnetometry establish a…

We theoretically investigate the interplay between Zeeman splitting and TE-TM-induced spin-flip tunneling in coupled exciton-polariton condensates systems and its impact on the spin-Meissner effect. We demonstrate that although a single…

介观与纳米尺度物理 · 物理学 2025-05-21 I. Yu. Chestnov , A. Kudlis , A. V. Nalitov , I. A. Shelykh

Generating a pure spin current using electrons, which have degrees of freedom beyond spin, such as electric charge and valley index, presents challenges. In response, we propose a novel mechanism based on intervalley exciton dynamics in…

介观与纳米尺度物理 · 物理学 2024-05-08 A. Shubnic , V. Shahnazaryan , I. A. Shelykh , H. Rostami

In superconductors spin-split by an exchange field, thermal effects are coupled to spin transport. We show how an oscillating electromagnetic field in such systems creates spin imbalance, that can be detected with a spin-polarized probe.…

超导电性 · 物理学 2016-01-25 P. Virtanen , T. T. Heikkilä , F. S. Bergeret
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