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相关论文: Diffusive magnetotransport in a two-dimensional Ra…

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We present calculations of the conductivity tensor \sigma of a 2D-system with the Rashba spin-orbit interaction (SOI) in an orthogonal magnetic field, with allowance for electron elastic scattering by a Gaussian \delta-correlated random…

介观与纳米尺度物理 · 物理学 2007-05-23 S. G. Novokshonov , A. G. Groshev

We evaluate the transport coefficients of a two-dimensional electron gas (2DEG) in the presence of a perpendicular magnetic field and of the spin-orbit interaction (SOI) described only by the Rashba term. The SOI mixes the spin-up and…

介观与纳米尺度物理 · 物理学 2016-08-31 X. F. Wang , P. Vasilopoulos

We consider a two-dimensional electron gas (2DEG) with the Rashba spin-orbit interaction (SOI) in presence of a perpendicular magnetic field. We derive analytical expressions of the density of states (DOS) of a 2DEG with the Rashba SOI in…

介观与纳米尺度物理 · 物理学 2015-05-30 S. K. Firoz Islam , Tarun Kanti Ghosh

Transport properties of a two-dimensional electron gas (2DEG) are studied in the presence of a perpendicular magnetic field $B$, of a {\it weak} one-dimensional (1D) periodic potential modulation, and of the spin-orbit interaction (SOI)…

介观与纳米尺度物理 · 物理学 2009-11-10 X. F. Wang , P. Vasilopoulos , F. M. Peeters

The band structure and magnetotransport of a two-dimensional electron gas (2DEG), in the presence of the Rashba (RSOI) and Dresselhaus (DSOI) terms of the spin-orbit interaction and of a perpendicular magnetic field, is investigated. Exact…

介观与纳米尺度物理 · 物理学 2009-11-11 X. F. Wang , P. Vasilopoulos

We study the electrical transport properties of a two-dimensional electron gas with the Rashba spin-orbit interaction in presence of a constant perpendicular magnetic field $(B_0 \hat z)$ which is weakly modulated by ${\bf B_1} = B_1 \cos…

介观与纳米尺度物理 · 物理学 2015-03-19 SK Firoz Islam , Tarun Kanti Ghosh

We present magnetotransport calculations for homogeneous two-dimensional electron systems including the Rashba spin-orbit interaction, which mixes the spin-eigenstates and leads to a modified fan-chart with crossing Landau levels. The…

介观与纳米尺度物理 · 物理学 2016-08-16 M. Langenbuch , M. Suhrke , U. Rössler

The Rashba Hamiltonian describes the splitting of the conduction band as a result of spin-orbit coupling in the presence of an asymmetric confinement potential and is commonly used to model the electronic structure of confined narrow-gap…

介观与纳米尺度物理 · 物理学 2009-11-07 Jun-ichiro Inoue , Gerrit E. W. Bauer , Laurens W. Molenkamp

For the two-dimensional ideal electron gas with the Rashba spin-orbit interaction and in the presence of non-magnetic short-ranged potential impurities the spin-Hall conductivity $\sigma_{sH}$ is found by direct microscopic calculation.…

介观与纳米尺度物理 · 物理学 2007-05-23 Ol'ga V. Dimitrova

Spin-orbit interaction (SOI) has been a key tool to steer and manipulate spin-dependent transport properties in two-dimensional electron gases. Here we demonstrate how spin currents can be created and efficiently read out in nano- or…

介观与纳米尺度物理 · 物理学 2023-04-05 F. N. Gürsoy , P. Reck , C. Gorini , K. Richter , I. Adagideli

The beating pattern of Shubnikov-de Haas oscillations in 2D electron system in the presence of a Rashba zero-field spin splitting is reproduced. It is shown, taking into account the Zeeman splitting, that the explicit formulae for the node…

介观与纳米尺度物理 · 物理学 2009-11-11 M. V. Cheremisin , A. S. Furman

Electron transport through multi-terminal rectangular arrays of quantum rings is studied in the presence of Rashba-type spin-orbit interaction (SOI) and of a perpendicular magnetic field. Using the analytic expressions for the transmission…

介观与纳米尺度物理 · 物理学 2009-11-13 Orsolya Kalman , Peter Foldi , Mihaly G. Benedict , Francois M. Peeters

Shubnikov-de Haas (SdH) oscillations have served as a paradigmatic experimental probe and tool for extracting key semiconductor parameters such as carrier density, effective mass, Zeeman splitting with g-factor $g^*$, quantum scattering…

We generalize a Landauer-type formula, using a real$\otimes$spin-space Green function technique, to treat spin-dependent transport in quantum-coherent conductors attached to two ferromagnetic contacts. The formalism is employed to study the…

介观与纳米尺度物理 · 物理学 2007-05-23 Branislav K. Nikolic , J. K. Freericks

We consider the problem of spin relaxation in a two-dimensional electron gas (2DEG) in a perpendicular magnetic field. We assume that the spin relaxation is induced by the Rashba spin-orbit (SO) interaction, which appears due to the…

介观与纳米尺度物理 · 物理学 2009-11-10 A. A. Burkov , Leon Balents

We show that the conductivity tensor of a disordered two-dimensional electron gas becomes anisotropic in the presence of both Rashba and Dresselhaus spin-orbit interactions (SOI). This anisotropy is a mesoscopic effect and vanishes with…

介观与纳米尺度物理 · 物理学 2008-03-31 Oleg Chalaev , Daniel Loss

Magneto-oscillations in two-dimensional systems with spin-orbit interaction are typically characterized by fast Shubnikov-de~Haas (SdH) oscillations and slower spin-orbit-related beatings. The characterization of the full SdH oscillatory…

介观与纳米尺度物理 · 物理学 2024-05-24 Hamed Gramizadeh , Denis R. Candido , Andrei Manolescu , J. Carlos Egues , Sigurdur I. Erlingsson

A nonequilibrium Green's functions approach to spin-Hall effect is developed in a diffusive two-dimensional electron system with Rashba spin-orbit interaction. In the presence of long-range impurities, the coupled quantum kinetic equations…

材料科学 · 物理学 2007-05-23 S. Y. Liu , X. L. Lei

We study the transport properties of two dimensional electron systems with strong Rashba spin-orbit coupling (SOC) doped with interacting magnetic impurities. Interactions between magnetic impurities cause the formation of magnetic clusters…

介观与纳米尺度物理 · 物理学 2020-03-16 A. N. Zarezad , J. Abouie

The Schr\"{o}dinger equation for an electron in a mesoscopic ring, in the presence of the Rashba and linear Dresselhaus terms of the spin-orbit interaction (SOI) and of a magnetic field $B$, is solved exactly. The effective electric fields…

介观与纳米尺度物理 · 物理学 2007-05-23 X. F. Wang , P. Vasilopoulos
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