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相关论文: Spin densities in parabolic quantum wires with Ras…

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The band structure of a quantum wire with the Rashba spin-orbit coupling develops a pseudogap in the presence of a magnetic field along the wire. In such a system spin mixing at the Fermi wavevectors $-k_F$ and $k_F$ can be different. We…

强关联电子 · 物理学 2009-11-11 Hyun C. Lee , S. -R. Eric Yang

We investigate the nu=1 quantum Hall ferromagnet in the presence of spin-orbit coupling of the Rashba or Dresselhaus type by means of Hartree-Fock-typed variational states. In the presence of Rashba (Dresselhaus) spin-orbit coupling the…

介观与纳米尺度物理 · 物理学 2009-11-07 John Schliemann , J. Carlos Egues , Daniel Loss

The interplay between Rashba, Dresselhaus and Zeeman interactions in a quantum well submitted to an external magnetic field is studied by means of an accurate analytical solution of the Hamiltonian, including electron-electron interactions…

介观与纳米尺度物理 · 物理学 2016-08-16 Enrico Lipparini , Manuel Barranco , Francesc Malet , Martí Pi , Llorenç Serra

We investigate the spin dynamics of electrons in quantum wells where the Rashba type of spin-orbit coupling is present in the form of random nanosize domains. We study the effect of magnetic field on the spin relaxation in these systems and…

介观与纳米尺度物理 · 物理学 2009-11-11 M. M. Glazov , E. Ya. Sherman

We consider quasiballistic electron transmission in a one-dimensional quantum wire subject to both time-independent and periodic potentials of a finger gate that results in a coordinate- and time-dependent Rashba-type spin-orbit coupling. A…

介观与纳米尺度物理 · 物理学 2013-10-11 Almas F. Sadreev , E. Ya. Sherman

Based on kinetic equations for the density matrix, drift-diffusion equations are derived for a two-dimensional electron gas with Rashba spin-orbit coupling. Universal results are obtained for the weak coupling case. Most interesting is the…

统计力学 · 物理学 2009-11-13 V. V. Bryksin , P. Kleinert

The relativistic Rashba contribution to the spin-Hall effect in external electric and magnetic fields in Al and Pt was investigated. Schemes of edge accumulation of spins are proposed that take into account the flip of spins when they do…

介观与纳米尺度物理 · 物理学 2025-10-27 Yu. N. Chiang , M. O. Dzyuba

In this review article we describe spin-dependent transport in materials with spin-orbit interaction of Rashba type. We mainly focus on semiconductor heterostructures, topological insulators, graphene and hybrid structures involving…

介观与纳米尺度物理 · 物理学 2015-09-29 Dario Bercioux , Procolo Lucignano

We study theoretically the spin relaxation rate in quasi-one-dimensional coupled double semiconductor quantum dots. We consider InSb and GaAs-based systems in the presence of the Rashba spin-orbit interaction, which causes mixing of…

介观与纳米尺度物理 · 物理学 2009-11-11 C. L. Romano , P. I. Tamborenea , S. E. Ulloa

We show that a two-dimensional spin-orbit-coupled system in the presence of a charge/spin-density wave with a wave-vector perpendicular to an applied electric field supports bulk manifestations of the direct/inverse spin-Hall effect. We…

材料科学 · 物理学 2010-03-15 Brandon Anderson , Tudor D. Stanescu , Victor Galitski

We investigate intersubband mixing effects in multichannel quantum wires in the presence of Rashba spin-orbit coupling and attached to two terminals. When the contacts are ferromagnetic and their magnetization direction is perpendicular to…

介观与纳米尺度物理 · 物理学 2010-04-29 M. M. Gelabert , Llorens Serra , David Sanchez , Rosa Lopez

We propose a mechanism of spin Hall effect in two-dimensional electron gas with spatially random Rashba spin-orbit interaction. The calculations based on the Kubo formalism and kinetic equation show that in contrast to the constant…

介观与纳米尺度物理 · 物理学 2015-05-20 V. K. Dugaev , M. Inglot , E. Ya. Sherman , J. Barnas

We show that Rashba spin-orbit coupling may result in an energy gap in the spectrum of electrons in a two-mode quantum wire if a suitable confining potential is chosen. This leads to a dip in the conductance and a spike in the spin current…

介观与纳米尺度物理 · 物理学 2014-02-03 K. E. Nagaev , A. S. Goremykina

We consider a two-dimensional electron gas in the presence of Rashba spin-orbit coupling, and study the effects of magnetic s-wave impurities and long-range non-magnetic disorder on the spin-charge dynamics of the system. We focus on…

介观与纳米尺度物理 · 物理学 2008-10-30 C. Gorini , P. Schwab , M. Dzierzawa , R. Raimondi

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 consider the magnetic response of a two-dimensional electron gas (2DEG) with both Rashba and Dresselhaus spin-orbit coupling to a microwave excitation. We generalize the results of [A. Shnirman and I. Martin, Europhys. Lett. 78, 27001…

介观与纳米尺度物理 · 物理学 2009-01-22 Mikhail Pletyukhov , Alexander Shnirman

A nonequilibrium Green's function approach is employed to investigate the spin-Hall effect in diffusive two-dimensional electron systems with Rashba spin-orbit interaction. Considering a long-range electron-impurity scattering potential in…

材料科学 · 物理学 2009-11-11 S. Y. Liu , X. L. Lei

We calculate the spin Hall conductivity driven by Rashba spin-orbit interaction in $p$-type two-dimensional semiconductors in the presence of a perpendicular magnetic field. For a highly confined quantum well, the system is described by a…

介观与纳米尺度物理 · 物理学 2016-08-31 M. Zarea , Sergio E. Ulloa

We considered the nonequlibrium spin dipoles induced around spin independent elastic scatterers by the intrinsic spin-Hall effect associated with the Rashba spin-orbit coupling. The normal to 2DEG spin polarization has been calculated in…

介观与纳米尺度物理 · 物理学 2015-06-25 A. G. Mal'shukov , L. Y. Wang , C. S. Chu

We consider a single electron confined within a quantum wire in a system of two electrostatically-induced QDs defined by nearby gates. The time-varying electric field, of single GHz frequency, perpendicular to the quantum wire, is used to…

介观与纳米尺度物理 · 物理学 2021-07-19 J. Pawłowski , G. Skowron , P. Szumniak , S. Bednarek