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We investigate theoretically the effect of an external magnetic field on polarization patterns appearing in quantum microcavities due to the optical spin Hall effect (OSHE). We show that increase of the magnetic field perpendicular to the…

Mesoscale and Nanoscale Physics · Physics 2013-08-09 S. Morina , T. C. H. Liew , I. A. Shelykh

Photonic spin Hall effect is a manifestation of spin-orbit interaction of light and can be measured by a transverse shift \lambda of photons with opposite spins. The precise measurement of transverse shifts can enable many spin-related…

Spin Hall effect (SHE) induced reversal of perpendicular magnetization has attracted significant interest, due to its potential to lead to low power memory and logic devices. However, the switching requires an assisted in-plane magnetic…

Materials Science · Physics 2017-10-11 Zhengyang Zhao , Angeline Klemm Smith , Mahdi Jamali , Jian-Ping Wang

Spin pumping is a technique widely used to generate the pure spin current and characterize the spin-charge conversion in various systems. The reversing sign of the symmetric Lorentzian charge current with respect to opposite magnetic field…

Mesoscale and Nanoscale Physics · Physics 2022-03-08 Kang He , Jun Cheng , Man Yang , Yihui Zhang , Longqian Yu , Qi Liu , Liang Sun , Bingfeng Miao , Canming Hu , Haifeng Ding

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…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Baoli Liu , Junren Shi , Wenxin Wang , Hongming Zhao , Dafang Li , Shoucheng Zhang , Qikun Xue , Dongmin Chen

We report on the spin-polarized electron injection through an Fe(100)/InAs(100) junction. The circularly polarized electroluminescence of injected electrons from epitaxially grown Fe thin film into InAs(100) in an external magnetic field is…

An experiment to probe spin-polarized currents in the quantum Hall regime is suggested that takes advantage of the large Zeeman-splitting in the paramagnetic diluted magnetic semiconductor zinc manganese selenide (Zn$_{1-x}$Mn$_x$Se). In…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Thomas Herrle , Tobias Leeb , Guido Schollerer , Werner Wegscheider

The polarization controlled optical signal routing has many important applications in photonics such as polarization beam splitter. By using two-dimensional transmission lines with lumped elements, we experimentally demonstrate the…

Mesoscale and Nanoscale Physics · Physics 2017-11-15 Zhiwei Guo , Haitao Jiang , Yang Long , Kun Yu , Jie Ren , Chunhua Xue , Hong Chen

The helicity of a circularly polarized light beam may be determined by the spin direction of photo-excited electrons in a III-V semiconductor. We present a theoretical demonstration how the direction of the ensuing electron spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 H. Dery , L. Cywinski , L. J. Sham

While microscopic laws of physics are invariant under the reversal of the arrow of time, the transport of energy and information in most devices is an irreversible process. It is this irreversibility that leads to intrinsic dissipations in…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Shuichi Murakami , Naoto Nagaosa , Shou-Cheng Zhang

The anomalous Hall effect (AHE) is an efficient tool for detecting the N\'eel vector in collinear compensated magnets with spin-split bands, known as altermagnets (AMs). Here, we establish design principles for obtaining non-zero anomalous…

Materials Science · Physics 2025-05-13 Sajjan Sheoran , Pratibha Dev

In this Letter we present a microscopic theory of the extrinsic spin Hall effect based on the diagrammatic perturbation theory. Side-jump (SJ) and skew-scattering (SS) contributions are explicitly taken into account to calculate the spin…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Wang-Kong Tse , S. Das Sarma

We study the spin-orbital interaction and the spin Hall effect(SHE) of an electron moving on a noncommutative space under the influence of a vector potential A. On a noncommutative space we find that the commutator between the vector…

High Energy Physics - Theory · Physics 2011-08-23 Kai Ma , Sayipjamal Dulat

Spin-dependent transport through an endohedral fullerene Co@C$_{60}$ dimer with gold electrodes is explored theoretically using density functional and extended H\"{u}ckel theory. Density of states spin polarizations up to 95%, due to…

Mesoscale and Nanoscale Physics · Physics 2013-05-01 Alireza Saffarzadeh , George Kirczenow

The spin Hall effect (SHE) is one of the promising phenomena to utilize a spin current as spintronics devices, and the theoretical understanding of its microscopic mechanism is essential to know how to control its response. Although the SHE…

Mesoscale and Nanoscale Physics · Physics 2016-02-03 Tomonari Mizoguchi , Naoya Arakawa

We put forward a mechanism for current induced spin polarization for a hole in a quantum dot side-coupled to a quantum wire, that is based on the spin-orbit splitting of the valence band. We predict that in a stark contrast with the…

Mesoscale and Nanoscale Physics · Physics 2021-07-15 V. N. Mantsevich , D. S. Smirnov

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…

Mesoscale and Nanoscale Physics · Physics 2017-08-22 Takaaki Fukazawa , Hiroshi Kohno , Junji Fujimoto

Electrical generation and transduction of polarized electron spins in semiconductors are of central interest in spintronics and quantum information science. While spin generation in semiconductors has been frequently realized via electrical…

Spin lasers leverage electron spin-polarisation to control photon polarisation, offering the potential for lower thresholds, rapid modulation, and all-optical data processing. We report successful spin injection into a commercial Vertical…

Optical orientation has been proven as a powerful tool to inject spin-polarized electron and hole populations in III-V and group-IV semiconductors. In particular, the absorption of circularly-polarized light in bulk Ge generates a…

Materials Science · Physics 2025-10-13 Francesco Scali , Marco Finazzi , Federico Bottegoni , Carlo Zucchetti
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