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Using a multi-conduction-channel model, we redefined the micromechanism of spin Hall magnetoresistance (SMR). Four conduction channels are created by spin accumulation of nonpolarized electron flow at top, bottom, left and right interfaces…

材料科学 · 物理学 2015-02-17 Yan-Qing Zhang , Hua-Rui Fu , Niu-Yi Sun , Wen-Ru Che , Ding Ding , Juan Qin , Cai-Yin You , Zhen-Gang Zhu , Rong Shan

A spin version of transistor, where magnetism is used to influence electrical behaviors of the semiconductor, has been a long-pursued device concept in spintronics. In this work, we experimentally study a field-effect transistor with CrSBr,…

Here, we explore the role of inherent altermagnetic topology in transverse transport phenomena (such as crystal/anomalous Hall, Nernst, and thermal Hall effects) in several famous altermagnets, including tetragonal…

材料科学 · 物理学 2025-12-11 Xiuxian Yang , Xiaodong Zhou , Jingming Shi , Shifeng Qian , Xiaotian Wang , Wenhong Wang , Yinwei Li

We report on the evidence for the multiband electronic transport in $\alpha$-YbAlB$_{4}$ and $\alpha$-Yb$_{0.81(2)}$Sr$_{0.19(3)}$AlB$_{4}$. Multiband transport reveals itself below 10 K in both compounds via Hall effect measurements,…

强关联电子 · 物理学 2016-08-26 Hyejin Ryu , Milinda Abeykoon , Emil Bozin , Yosuke Matsumoto , S. Nakatsuji , C. Petrovic

The electron transport properties of hybrid ferromagnetic|normal metal structures such as multilayers and spin valves depend on the relative orientation of the magnetization direction of the ferromagnetic elements. Whereas the contrast in…

介观与纳米尺度物理 · 物理学 2009-11-11 Arne Brataas , Gerrit E. W. Bauer , Paul J. Kelly

The exploration of spin configurations and magnetoresistance in van der Waals magnetic semiconductors, particularly in the realm of thin-layer structures, is of paramount significance for the development of two-dimensional spintronic…

介观与纳米尺度物理 · 物理学 2025-05-01 Ziqi Liu , Yichang Sun , Chengfeng Zhu , Canyu Hong , Yuchen Gao , Zeyuan Sun , Kenji Watanabe , Takashi Taniguchi , Shiwei Wu , Zuxin Chen , Pingfan Gu , Yu Ye

Narrow-gap higher mobility semiconducting alloys In_{1-x}Mn_{x}Sb were synthesized in polycrystalline form and their magnetic and transport properties have been investigated. Ferromagnetic response in In_{0.98}Mn_{0.02}Sb was detected by…

Altermagnets, recently proposed as a third category of collinear magnets, combine the features of zero net magnetization in antiferromagnets and the spin splitting in ferromagnets. While abundant spectroscopic evidence for altermagnetism…

材料科学 · 物理学 2026-04-24 Wenbo Wan , Xu Zhang , Yixuan Luo , Yanfeng Guo , Shiyan Li

Two-dimensional (2D) magnetic materials offer unprecedented opportunities for fundamental physics and applied research in spintronics and magnonics. Beyond the pioneering studies on 2D CrI3 and Cr2Ge2Te6, this emerging field has expanded to…

Altermagnets, a class of unconventional antiferromagnets where antiparallel spins are connected by combined rotational and translational symmetries, have recently emerged as promising candidates for spintronic applications, as they can…

The magnetic proximity effect can induce a spin dependent exchange shift in the band structure of graphene. This produces a magnetization and a spin polarization of the electron/hole carriers in this material, paving the way for its use as…

介观与纳米尺度物理 · 物理学 2023-12-13 Boxuan Yang , Bibek Bhujel , Daniel G. Chica , Evan J. Telford , Xavier Roy , Maxen Cosset-Chéneau , Bart J. van Wees

We theoretically propose a realization of a nonlinear nonreciprocal transport in antiferromagnets without relying on the relativistic spin-orbit coupling. Through the symmetry and microscopic model analyses, we show that a local spin scalar…

强关联电子 · 物理学 2022-09-23 Satoru Hayami , Megumi Yatsushiro

Resistivity, Hall effect, Seebeck coefficient, thermal conductivity, heat capacity, and magnetic susceptibility data are reported for CrSb2 single crystals. In spite of some unusual features in electrical transport and Hall measurements…

Electronic phases of matter, such as magnetism and superconductivity, are defined and distinguished by their order parameters that quantify the spontaneous symmetry breaking underlying each phase. The simplest cases are the uniform…

Altermagnetism represents an emergent collinear magnetic phase with compensated order and an unconventional alternating even-parity wave spin order in the non-relativistic band structure. We investigate directly this unconventional band…

Recently, a new magnetic phase, termed altermagnetism, has caught the attention of the magnetism and spintronics community. This newly discovered magnetic phenomenon differs from traditional ferromagnetism and antiferromagnetic. It…

强关联电子 · 物理学 2024-12-10 R. Tamang , Shivraj Gurung , D. P. Rai , Samy Brahimi , Samir Lounis

Magnetism-driven nonrelativistic spin splitting (NRSS) provides a pathway toward efficient, spin-orbit-free spintronics. In centrosymmetric two-dimensional antiferromagnets, spin-polarized transport is symmetry-forbidden due to the combined…

材料科学 · 物理学 2026-02-24 Shantanu Pathak , Saswata Bhattacharya

When a charge current is injected into an altermagnet along a suitable crystallographic direction, a transverse spin current can be generated. This so-called spin-splitter effect does not rely on spin-orbit coupling, and is thus distinct…

介观与纳米尺度物理 · 物理学 2025-07-08 Karl Bergson Hallberg , Erik Wegner Hodt , Jacob Linder

Cr$_{1/3}$NbS$_{2}$ is a transition metal dichalcogenide that has been of significant interest due to its ability to host a magnetic chiral soliton lattice. Conventional and planar Hall measurements provide valuable insight into the…

强关联电子 · 物理学 2022-02-22 D. A. Mayoh , J. Bouaziz , A. E. Hall , J. B. Staunton , M. R. Lees , G. Balakrishnan

Net-zero-magnetization magnets are attracting significant research interest, driven by their potential for ultrahigh density and ultrafast performance. Among these materials, the altermagnets possess alternating spin-splitting band…

材料科学 · 物理学 2025-04-01 San-Dong Guo