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We prove that certain non-exact magnetic Hamiltonian systems on products of closed hyperbolic surfaces and with a potential function of large oscillation admit non-constant contractible periodic solutions of energy below the Ma\~n\'e…

辛几何 · 数学 2020-08-17 Youngjin Bae , Kevin Wiegand , Kai Zehmisch

We study a two-component Bose gas with artificial spin-orbit coupling (SOC) which couples the center-of-mass momentum of atom to its internal states. We show that in this system resonance can be induced by tuning SOC strength. With a…

量子气体 · 物理学 2018-10-10 Qi Gu , Lan Yin

We study theoretically the current-induced spin polarization effect in a two-terminal mesoscopic structure which is composed of a semiconductor two-dimensional electron gas (2DEG) bar with Rashba spin-orbit (SO) interaction and two attached…

介观与纳米尺度物理 · 物理学 2015-06-25 Yongjin Jiang

We theoretically study the spin-orbit crossed susceptibility of topological Dirac semimetals. Because of strong spin-orbit coupling, the orbital motion of electrons is modulated by Zeeman coupling, which contributes to orbital…

介观与纳米尺度物理 · 物理学 2019-02-21 Yuya Ominato , Shuta Tatsumi , Kentaro Nomura

Spin-orbit coupling in crystals is known to lead to unusual direction dependent exchange interactions, however understanding of the consequeces of such effects in molecular crystals is incomplete. Here we perform four component relativistic…

强关联电子 · 物理学 2017-04-19 A. C. Jacko , A. L. Khosla , J. Merino , B. J. Powell

A novel spin filtering in two-dimensional electron system with nonuniform spin-orbit interactions (SOI) is theoretically studied. The strength of SOI is modulated perpendicular to the charge current. A spatial gradient of effective magnetic…

介观与纳米尺度物理 · 物理学 2009-11-10 Jun-ichiro Ohe , Masayuki Yamamoto , Tomi Ohtsuki , Junsaku Nitta

While traditionally considered a deleterious effect in quantum dot spin qubits, the spin-orbit interaction is recently being revisited as it allows for rapid coherent control by on-chip AC electric fields. For electrons in bulk silicon, SOC…

The electrical control of a spin qubit in a quantum dot relies on spin-orbit coupling (SOC), which could be either intrinsic to the underlying crystal lattice or heterostructure, or extrinsic via, for example, a micro-magnet. Here we show…

介观与纳米尺度物理 · 物理学 2021-03-01 Peihao Huang , Xuedong Hu

In solid state physics, any phase transition is commonly observed as a change in the microscopic distribution of charge, spin, or current. Here we report the nature of an exotic order parameter inherent in the localized electron orbitals…

强关联电子 · 物理学 2023-07-03 Shintaro Hoshino , Michi-To Suzuki , Hiroaki Ikeda

Circulating orbital currents, originating from the spin-orbit interaction, are calculated for semiconductor nanostructures in the shape of spheres, disks, spherical shells and rings for the electron ground state with spin oriented along a…

介观与纳米尺度物理 · 物理学 2015-06-22 J. van Bree , A. Yu. Silov , P. M. Koenraad , M. E. Flatté

We present a theoretical study of nonlocal magnetoelectric effects in diffusive hybrid structures with an intrinsic linear-in-momentum spin-orbit coupling (SOC) which is assumed to be spatially inhomogeneous. Our analysis is based on the…

介观与纳米尺度物理 · 物理学 2019-12-16 Cristina Sanz-Fernández , Juan Borge , Ilya V. Tokatly , F. Sebastián Bergeret

Light carries angular momentum as spin and orbital components. The spin-orbit interaction (SOI) of light refers to phenomena in which the spin (left or right circular polarisation) affects the spatial degrees of freedom. Recently, interest…

等离子体物理 · 物理学 2019-09-09 Longqing Yi , Ke Hu , Tünde Fülöp

Spin-orbit interaction (SOI) leads to spin precession about a momentum-dependent spin-orbit field. In a diffusive two-dimensional (2D) electron gas, the spin orientation at a given spatial position depends on which trajectory the electron…

介观与纳米尺度物理 · 物理学 2016-02-18 P. Altmann , M. Kohda , C. Reichl , W. Wegscheider , G. Salis

We present here a brief overview of current-induced spin polarization in bulk semiconductors and semiconductor structures of various dimension. The role of band structure and spin relaxation processes is discussed. The related phenomena,…

介观与纳米尺度物理 · 物理学 2017-06-15 N. S. Averkiev , I. A. Kokurin

We study spin polarization induced by locally injected electric currents in a metal whose spin--orbit coupling reflects its structural chirality. We reveal both spin polarization in the bulk in the linear response and antiparallel spin…

We study the origin of the intrinsic spin Hall conductivity (SHC) and the d-orbital Hall conductivity (OHC) in Pt based on a multiorbital tight-binding model with spin-orbit interaction. We find that the SHC reaches 1000 \hbar/e\Omega cm…

介观与纳米尺度物理 · 物理学 2009-11-13 H. Kontani , M. Naito , D. S. Hirashima , K. Yamada , J. Inoue

Understanding the role of spin-orbit coupling (SOC) has been crucial to controlling magnetic anisotropy in magnetic multilayer films. It has been shown that electronic structure can be altered via interface SOC by varying the superlattice…

We consider a model of the exciton-polariton condensate based on a system of two Gross-Pitaevskii equations coupled by the second-order differential operator, which represents the spin-orbit coupling (SOC) in the system. Also included are…

光学 · 物理学 2017-09-13 Hidetsugu Sakaguchi , Boris A. Malomed , Dmitry V. Skryabin

Spin-orbit coupling in two-dimensional systems is usually characterized by Rashba and Dresselhaus spin-orbit coupling (SOC) linear in the wave vector. However, there is a growing class of materials which instead support dominant SOC cubic…

介观与纳米尺度物理 · 物理学 2021-05-03 Mohammad Alidoust , Chenghao Shen , Igor Zutic

To describe the spin-orbital energy gap formation in the one-dimensional symmetrically coupled spin-orbital model, we propose a simple mean field theory based on an SU(4) constraint fermion representation of spins and orbitals. A…

凝聚态物理 · 物理学 2013-01-24 Guang-Ming Zhang , Hu Hui , Lu Yu
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