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Related papers: Spin diffusion in p-type bilayer WSe$_2$

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Ferromagnetic heterostructures provide an ideal platform to explore the nature of spin-orbit torques arising from the interplay mediated by itinerant electrons between a Rashba-type spin-orbit coupling and a ferromagnetic exchange…

Mesoscale and Nanoscale Physics · Physics 2014-02-10 Xuhui Wang , Christian Ortiz Pauyac , Aurelien Manchon

Using a three-dimensional spin polarimeter we have gathered evidence for the interference of spin states in photoemission from the surface alloy Sb/Ag(111). This system features a small Rashba-type spin-splitting of a size comparable to the…

Other Condensed Matter · Physics 2010-01-28 Fabian Meier , Vladimir Petrov , Hossein Mirhosseini , Luc Patthey , Juergen Henk , Juerg Osterwalder , J. Hugo Dil

In solid, the crystalline structure can endow electron an internal degree of freedom known as valley, which characterizes the degenerate energy minima in momentum space. The recent success in optical pumping of valley polarization in 2D…

Mesoscale and Nanoscale Physics · Physics 2017-03-07 Xing-Tao An , Jiang Xiao , M. W. -Y. Tu , Hongyi Yu , Vladimir I. Fal'ko , Wang Yao

We use spin- and angle-resolved photoemission spectroscopy (SARPES) combined with polarization-variable laser and investigate the spin-orbit coupling effect under interband hybridization of Rashba spin-split states for the surface alloys…

Materials Science · Physics 2017-01-26 Ryo Noguchi , Kenta Kuroda , K. Yaji , K. Kobayashi , M. Sakano , A. Harasawa , Takeshi Kondo , F. Komori , S. Shin

We developed functional integral formulation for the stripe phase of a spinor Bose-Einstein condensates with Rashba spin-orbit coupling. The excitation spectrum is found to exhibit double gapless band structures, identified to be two…

Quantum Gases · Physics 2018-04-05 Renyuan Liao

The recent experimental realization of a high quality WSe$% _{2} $ leads to the possibility of magneto-optical measurements and the manipulation of the spin and valley degrees of freedom. We study the influence of the very strong spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2016-07-26 M. Tahir , P. Vasilopoulos

We present a detailed analysis of the spin-flip excitations induced by a periodic time-dependent electric field in the Rashba prototype Au(111) noble metal surface. Our calculations incorporate the full spinor structure of the…

Materials Science · Physics 2013-09-18 Julen Ibañez-Azpiroz , Aitor Bergara , Evgeny Ya. Sherman , Asier Eiguren

Time-resolved Kerr-rotation microscopy explores the influence of optical doping on the persistent spin helix in a [001]-grown CdTe quantum well at cryogenic temperatures. Electron spin diffusion dynamics reveal a momentum-dependent…

Mesoscale and Nanoscale Physics · Physics 2018-06-06 F. Passmann , S. Anghel , T. Tischler , A. V. Poshakinskiy , S. A. Tarasenko , G. Karczewski , T. Wojtowicz , A. D. Bristow , M. Betz

Iridium is a very promising material for spintronic applications due to its interesting magnetic properties such as large RKKY exchange coupling as well as its large spin-orbit coupling value. Ir is for instance used as a spacer layer for…

Materials Science · Physics 2020-09-02 T. Fache , J. C. Rojas-Sánchez , L. Badie , S. Mangin , S. Petit-Watelot

We study the optically induced spin polarization, spin dephasing and diffusion in several high-mobility two-dimensional electron systems, which are embedded in GaAs quantum wells grown on (110)-oriented substrates. The experimental…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 R. Voelkl , M. Schwemmer , M. Griesbeck , S. A. Tarasenko , D. Schuh , W. Wegscheider , C. Schueller , T. Korn

We present a method to quantify the spin Hall angle (SHA) with spin pumping and microwave photoresistance measurements. With this method, we separate the inverse spin Hall effect (ISHE) from other unwanted effects for permalloy/Pt bilayers…

Mesoscale and Nanoscale Physics · Physics 2012-07-10 Z. Feng , J. Hu , L. Sun , B. You , D. Wu , J. Du , W. Zhang , A. Hu , Y. Yang , D. M. Tang , B. S. Zhang , H. F. Ding

Using spin and angle-resolved photoemission spectroscopy we investigate a momentum region in Pb quantum well states on Si(111) where hybridization between Rashba-split bands alters the band structure significantly. Starting from the Rashba…

Materials Science · Physics 2014-03-24 Bartosz Slomski , Gabriel Landolt , Stefan Muff , Fabian Meier , Jürg Osterwalder , J. Hugo Dil

We report an intrinsic form of the inverse spin Hall effect (ISHE) in ferromagnetic (FM) metal with Rashba spin orbit coupling (RSOC), which is driven by a normal charge current. Unlike the conventional form, the ISHE can be induced without…

Mesoscale and Nanoscale Physics · Physics 2012-03-01 M. -J. Xing , M. B. A. Jalil , Seng Ghee Tan , Y. Jiang

We present a theoretical study of elastic spin-dependent electron scattering caused by a nonuniform Rashba spin-orbit coupling strength. Using the spin-generalized method of partial waves the scattering amplitude is exactly derived for the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 András Pályi , Csaba Péterfalvi , József Cserti

We investigate the spin-Hall effect in a two-dimensional heavy-hole system with Rashba spin-orbit coupling using a nonequilibrium Green's function approach. Both the short- and long-range disorder scatterings are considered in the…

Materials Science · Physics 2009-11-11 S. Y. Liu , X. L. Lei

We investigate the steady-state spin diffusion for ultracold spin-orbit coupled $^{40}$K gas by the kinetic spin Bloch equation approach both analytically and numerically. Four configurations, i.e., the spin diffusions along two specific…

Quantum Gases · Physics 2015-07-08 T. Yu , M. W. Wu

We investigate spin transport of heavy holes in III-V semiconductor quantum wells in the presence of spin-orbit coupling of the Rashba type due to structure-inversion asymmetry. Similarly to the case of electrons, the longitudinal spin…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 John Schliemann , Daniel Loss

The valley degree of freedom and the possibility of spin-valley coupling of solid materials have attracted growing interest, and the relaxation dynamics of spin- and valley-polarized states has become an important focus of recent studies.…

Materials Science · Physics 2018-09-24 Dongbin Shin , Hosub Jin , Noejung Park

The current induced local spin polarization due to weak Rashba spin-orbit coupling in narrow strip is studied. In the presence of longitudinal charge current, local spin polarizations appear in the sample. The spin polarization…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Q. Wang , L. Sheng , C. S. Ting

In this work, a scanning inverse spin Hall effect measurement system based on a shorted coaxial resonator has been built, which provides a high throughput method to characterize spin transport properties. The spin diffusion length of Ta at…

Materials Science · Physics 2022-12-08 Peiwen Luo , Zhe Wu , Fei Huang , Bing Peng , Wenxu Zhang