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We propose a multiterminal nanostructure for electrical probing of the quantum spin Hall effect (QSHE) in two-dimensional (2D) topological insulators. The device consists of a ferromagnetic (FM) island with precessing magnetization that…

介观与纳米尺度物理 · 物理学 2010-01-28 Son-Hsien Chen , Branislav K. Nikolic , Ching-Ray Chang

We report on an all-electrical measurement of the spin Hall effect in epitaxial Fe/In_{x}Ga_{1-x}As heterostructures with n-type channel doping (Si) and highly doped Schottky tunnel barriers. A transverse spin current generated by an…

介观与纳米尺度物理 · 物理学 2015-05-19 E. S. Garlid , Q. O. Hu , M. K. Chan , C. J. Palmstrom , P. A. Crowell

Several spin-orbit effects allow performing spin to charge inter-conversion: the spin Hall effects, the Rashba effect, or the spin-momentum locking in topological insulators. Here we focus on how the detection of this inter-conversion can…

材料科学 · 物理学 2018-09-18 V. T. Pham , L. Vila , G. Zahnd , P. Noël , A. Marty , J. P. Attané

The spin Hall effect (SHE), which converts a charge current into a transverse spin current, has long been believed to be a phenomenon induced by the spin--orbit coupling. Here, we propose an alternative mechanism to realize the intrinsic…

材料科学 · 物理学 2021-06-22 Yang Zhang , Jakub Zelezny , Yan Sun , Jeroen van den Brink , Binghai Yan

We report measurements of spin pumping and the inverse spin Hall effect in Ni80Fe20/Uranium bilayers designed to study the efficiency of spin-charge interconversion in a super-heavy element. We employ broad-band ferromagnetic resonance on…

介观与纳米尺度物理 · 物理学 2016-01-20 Simranjeet Singh , Marta Anguera , Enrique del Barco , Ross Springell , Casey W. Miller

We theoretically consider the spin-wave mode- and wavelength-dependent enhancement of the Gilbert damping in magnetic insulator--normal metal bilayers due to spin pumping as well as the enhancement's relation to direct and alternating…

介观与纳米尺度物理 · 物理学 2017-06-28 André Kapelrud , Arne Brataas

We propose fractional spin hall effect (FSHE) by coupling pseudospin states of cold bosonic atoms to optical fields. The present scheme is an extension to interacting bosonic system of the recent work \cite{liu,zhu} on optically induced…

介观与纳米尺度物理 · 物理学 2009-04-03 Xiong-Jun Liu , Xin Liu , L. C. Kwek , C. H. Oh

Over the last two decades organic spintronics has developed into a striving field with exciting reports of long spin diffusion lengths and spin relaxation times in organic semiconductors (OSCs). Easily processed and inexpensive, OSCs are…

介观与纳米尺度物理 · 物理学 2021-08-30 Piotr Skalski , Olga Zadvorna , Deepak Venkateshvaran , Henning Sirringhaus

Determining the detailed spin texture of topological surface states is important when one wants to apply topological insulators in spintronic devices. In principle, the in-plane spin component of the surface states can be measured by a…

介观与纳米尺度物理 · 物理学 2020-05-01 Matthias Götte , Thomas Dahm

Spin-orbit-related effects offer a highly promising route for reading and writing information in magnetic units of future devices. These phenomena rely not only on the static magnetization orientation but also on its dynamics to achieve…

介观与纳米尺度物理 · 物理学 2017-06-19 Filipe S. M. Guimarães , Manuel dos Santos Dias , Juba Bouaziz , Antonio T. Costa , Roberto B. Muniz , Samir Lounis

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

The spin Hall effect of light, a spin-dependent transverse splitting of light at an optical interface, is intrinsically an incident-polarization-sensitive phenomenon. Recently, an approach to eliminate the polarization dependence by…

光学 · 物理学 2021-09-10 Minkyung Kim , Dasol Lee , Junsuk Rho

The inverse spin Hall effect used for detection of spin currents was observed by voltage measurements in bilayers of normal metal (NM)/ferromagnetic metal (FM), using Nb, Mo and Bi as normal metal and Permalloy (Py, Ni$_{81}$Fe$_{19}$) as…

介观与纳米尺度物理 · 物理学 2024-03-28 David Ley Dominguez , Jose Andres Matutes Aquino

We quantitatively evaluate a spin anomalous Hall effect (SAHE), generating spin angular momentum flow (spin current, $J_{\rm s}$), in an L1$\rm_{0}$-FePt ferromagnet by exploiting giant magnetoresistance devices with L1$\rm_{0}$-FePt / Cu /…

介观与纳米尺度物理 · 物理学 2019-10-23 Takeshi Seki , Satoshi Iihama , Tomohiro Taniguchi , Koki Takanashi

We observe the inverse spin Hall effect in a two-dimensional electron gas confined in AlGaAs/InGaAs quantum wells. Specifically, we find that an inhomogeneous spin density induced by the optical injection gives rise an electric current…

介观与纳米尺度物理 · 物理学 2007-05-23 Baoli Liu , Junren Shi , Wenxin Wang , Hongming Zhao , Dafang Li , Shoucheng Zhang , Qikun Xue , Dongmin Chen

The spin Hall effect in ferromagnets is of great interest in the field of spintronics, and while the effect has been quantified in many materials, the dependence of the spin Hall angle on the relative orientation of spin polarization and…

A quantitative investigation of spin-pumping-induced spin-transport in n-GaAs was conducted at room temperature (RT). GaAs has a non-negligible spin orbit interaction, so that electromotive force due to the inverse spin Hall effect (ISHE)…

材料科学 · 物理学 2015-06-23 Akiyori Yamamoto , Yuichiro Ando , Teruya Shinjo , Tetsuya Uemura , Masashi Shiraishi

The relative contribution of spin pumping and spin rectification from the ferromagnetic resonance of CoFeB/non-magnetic bilayers was investigated as a function of non-magnetic electrode resistance. Samples with highly resistive electrodes…

材料科学 · 物理学 2015-06-19 Dong-Jun Kim , Sang-Il Kim , Seung-Young Park , Kyeong-Dong Lee , Byong-Guk Park

Spin Hall effects are a collection of relativistic spin-orbit coupling phenomena in which electrical currents can generate transverse spin currents and vice versa. Although first observed only a decade ago, these effects are already…

材料科学 · 物理学 2014-11-13 Jairo Sinova , Sergio O. Valenzuela , J. Wunderlich , C. H. Back , T. Jungwirth

We develop a geometric photonic spin Hall effect (PSHE) which manifests as spin-dependent shift in momentum space. It originates from an effective space-variant Pancharatnam-Berry (PB) phase created by artificially engineering the…

光学 · 物理学 2014-07-04 Xiaohui Ling , Xinxing Zhou , Xunong Yi , Hailu Luo , Shuangchun Wen