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The ZrSiS-type compounds are Dirac semimetals and have been attracting considerable interest in recent years due to their topological electronic properties and possible applications. In particular, gapped Dirac nodes can possess large spin…

介观与纳米尺度物理 · 物理学 2020-03-03 Yun Yen , Guang-Yu Guo

Since spin currents can be generated, detected, and manipulated via the spin Hall effect (SHE), the design of strong SHE materials has become a focus in the field of spintronics. Because of the recent experimental progress also the spin…

Transition metal monosilicides CoSi, CoGe, RhSi and RhGe in the chiral cubic B20 structure have recently been found to host unconventional chiral fermions beyond spin-1/2 WFs, and also exhibit exotic physical phenomena such as long Fermi…

材料科学 · 物理学 2022-10-05 Ting-Yun Hsieh , Babu Baijnath Prasad , Guang-Yu Guo

We have theoretically explored the intrinsic spin Hall effect (SHE) in the iron-based superconductor family with a variety of materials. The study is motivated by an observation that, in addition to an appreciable spin-orbit coupling in the…

强关联电子 · 物理学 2012-08-15 Sudhakar Pandey , Hiroshi Kontani , Dai S. Hirashima , Ryotaro Arita , Hideo Aoki

Bismuth is an archetypal semimetal with gigantic spin-orbit coupling and it has been a major source material for the discovery of seminal phenomena in solid state physics for more than a century. In recent years, spin current transports in…

材料科学 · 物理学 2022-10-19 Guang-Yu Guo

Ferroelectric Rashba semiconductors (FERSC) have recently emerged as a promising class of spintronics materials. The peculiar coupling between spin and polar degrees of freedom responsible for several exceptional properties, including…

材料科学 · 物理学 2019-07-10 H. Wang , P. Gopal , S. Picozzi , S. Curtarolo , M. Buongiorno Nardelli , J. Slawinska

The recent discovery of strong spin Hall effects (SHE) in 2D layered topological semimetals has attracted intensive attention due to its exotic electronic properties and potential applications in spintronic devices. In this paper, we…

材料科学 · 物理学 2023-01-05 Xi Zuo , Yulin Feng , Na Liu , Bing Huang , Desheng Liu , Bin Cui

We investigate the intrinsic spin Nernst effect (SNE), a transverse spin current induced by temperature gradients, in topological Dirac semimetals (TDSMs) and magnetic Weyl semimetals (MWSMs) with Ising spin-orbit coupling. The intrinsic…

材料科学 · 物理学 2025-06-16 Taiki Matsushita , Akihiro Ozawa , Yasufumi Araki , Junji Fujimoto , Masatoshi Sato

In this work, we report a systematic study of the electronic structures, band topology, and intrinsic spin Hall effect (SHE) of the layered MAX carbides Mn+1AlCn (M= Nb, Ta, n=1, 2, 3) and explore the correlation effects on the SHE. The…

介观与纳米尺度物理 · 物理学 2025-08-12 Yanhui Chen , Hong-Yan Lu , Wenjin Yang , Meifeng Liu , Bin Cui , Desheng Liu , Bing Huang , Xi Zuo

The spin Hall effect (SHE) is the conversion of charge current to spin current, and non-magnetic metals with large SHEs are extremely sought after for spintronic applications, but their rarity has stifled widespread use. Here we predict and…

介观与纳米尺度物理 · 物理学 2019-04-09 E. Derunova , Y. Sun , C. Felser , S. S. P. Parkin , B. Yan , M. N. Ali

Controlling charge-spin current conversion by electric fields is crucial in spintronic devices, which can be realized in diatom ferroelectric semiconductor GeTe where it is established that ferroelectricity can change the spin texture. We…

材料科学 · 物理学 2020-07-09 Wenxu Zhang , Zhao Teng , Huizhong Zeng , Jakub Zelezny , Hongbin Zhang , Wanli Zhang

We investigate the spin Hall effect (SHE) of electrons described by the Dirac equation, which is used as an effective model near the $L$-points in bismuth. By considering short-range nonmagnetic impurities, we calculate the extrinsic as…

介观与纳米尺度物理 · 物理学 2017-08-22 Takaaki Fukazawa , Hiroshi Kohno , Junji Fujimoto

Noncollinear antiferromagnets have recently been attracting considerable interest partly due to recent surprising discoveries of the anomalous Hall effect (AHE) in them and partly because they have promising applications in…

材料科学 · 物理学 2019-10-22 Guang-Yu Guo , Tzu-Cheng Wang

Recently the Quantum Spin Hall effect (QSH) was theoretically predicted and experimentally realized in a quantum wells based on binary semiconductor HgTe[1-3]. QSH state and topological insulators are the new states of quantum matter…

材料科学 · 物理学 2013-08-08 S. Chadov , X. -L. Qi , J Kübler , G. H. Fecher , C. Felser , S. -C. Zhang

Kagome metals are topological materials with a rich phase diagram featuring various charge density wave orders and even unconventional superconductivity. However, little is still known about possible spin-polarized responses in these…

材料科学 · 物理学 2024-12-17 Diana Golovanova , Hengxin Tan , Tobias Holder , Binghai Yan

We compute the intrinsic contributions to the Berry-phase mediated anomalous Hall and Nernst effects in electron- and hole-doped semiconductors in the presence of an in-plane magnetic field as well as Rashba and Dresselhaus spin orbit…

介观与纳米尺度物理 · 物理学 2012-06-18 E. Dumitrescu , Chuanwei Zhang , D. C. Marinescu , Sumanta Tewari

We propose a spin Hall effect (SHE) enhancement mechanism due to Kramers-Weyl point (KWP) alignment in chiral topological semimetals with high Chern numbers (CNs). Through model Hamiltonian calculations, we identify enhancements in the…

介观与纳米尺度物理 · 物理学 2023-07-18 C. O. Ascencio , Wei Jiang , D. J. P. de Sousa , Seungjun Lee , Jian-Ping Wang , Tony Low

We theoretically investigate an extrinsic spin Hall effect (SHE) in semiconductor heterostructures due to the scattering by an artificial potential created by antidot, STM tip, etc. The potential is electrically tunable. First, we formulate…

介观与纳米尺度物理 · 物理学 2015-05-13 Mikio Eto , Tomohiro Yokoyama

The interplay among heat, spin, and charge is the central focus in spin caloritronic research. While the longitudinal heat-to-spin conversion via the spin Seebeck effect has been intensively studied, the transverse heat-to-spin conversion…

材料科学 · 物理学 2025-02-17 Wen-Yuan Li , Chia-Hsi Lin , Guang-Yu Guo , Ssu-Yen Huang , Danru Qu

Spin-1 chiral semimetal is a new state of quantum matter hosting unconventional chiral fermions that extend beyond the common Dirac and Weyl fermions. B20-type CoSi is a prototypal material that accommodates such an exotic quasiparticle. To…

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