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The transport property of a lateral two-dimensional diluted magnetic semiconductor electron gas under a spatially periodic magnetic field is investigated theoretically. We find that the electron Fermi velocity along the modulation direction…

介观与纳米尺度物理 · 物理学 2007-05-23 W. Yang , Kai Chang , X. G. Wu , H. Z. Zheng

We apply the Wigner function formalism to derive drift-diffusion transport equations for spin-polarized electrons in a III-V semiconductor single quantum well. Electron spin dynamics is controlled by the linear in momentum spin-orbit…

介观与纳米尺度物理 · 物理学 2009-11-10 Semion Saikin

According to the spin-torque model, current-driven magnetic dynamics in ferromagnetic multilayers is determined by the transfer of electron spin perpendicular to the layers' magnetizations. By separating the largest contributions to the…

材料科学 · 物理学 2007-05-23 S. Urazhdin

The correlated motion of electrons in a one dimensional system with an externally applied longitudinal electric field is discussed. Within the tight binding model we show that in addition to the well known Bloch oscillations the…

凝聚态物理 · 物理学 2009-11-10 F. Claro , J. F. Weisz , S. Curilef

In metallic ferromagnets, the spin-transfer torque and spin-motive force are known to exhibit a reciprocal relationship. Recent experiments on ferromagnets with strong spin-orbit coupling have revealed a rich complexity in the interaction…

介观与纳米尺度物理 · 物理学 2015-06-12 Kjetil M. D. Hals , Arne Brataas

We study the spin-dependent magneto conductance in mesoscopic rings subject to an inhomogeneous in-plane magnetic field. We show that the polarization direction of transmitted spin-polarized electrons can be controlled via an additional…

介观与纳米尺度物理 · 物理学 2009-11-07 Diego Frustaglia , Martina Hentschel , Klaus Richter

We investigate the dynamics of spin-nonequilibrium electron systems in the hydrodynamic flow regime, when the normal scattering processes, which conserve the total quasi-momentum of the system of electrons and quasi-particles that interact…

介观与纳米尺度物理 · 物理学 2013-10-17 R. N. Gurzhi , A. N. Kalinenko , A. I. Kopeliovich , P. V. Pyshkin , S. B. Rutkevich , A. V. Yanovsky , A. N. Yashin

The transport of energetic electrons is sensitive to magnetic perturbations. By using 3D numerical simulation of test particle drift orbits we show that the transport of untrapped electrons through an open region with magnetic perturbations…

等离子体物理 · 物理学 2015-07-22 Gergely Papp , Michael Drevlak , Gergő I. Pokol , Tünde Fülöp

The recent rise of material platforms combining magnetism and two-dimensionality of mobile carriers reveals a diverse spectrum of spin-orbit phenomena and stimulates its ongoing theoretical discussions. In this work we use the density…

介观与纳米尺度物理 · 物理学 2022-02-02 K. S. Denisov

We derive the transport equations for two-dimensional electron systems with spin-orbit interaction and short-range spin-independent disorder. In the limit of slow spatial variations of the electron distribution we obtain coupled diffusion…

介观与纳米尺度物理 · 物理学 2007-05-23 E. G. Mishchenko , A. V. Shytov , B. I. Halperin

We develop a drift-diffusion equation that describes electron spin polarization density in two-dimensional electron systems. In our approach, superpositions of spin-up and spin-down states are taken into account, what distinguishes our…

介观与纳米尺度物理 · 物理学 2007-05-23 Yuriy V. Pershin

We present a study of spin transport in charge and spin inhomogeneous semiconductor systems. In particular, we investigate the propagation of spin-polarized electrons through a boundary between two semiconductor regions with different…

材料科学 · 物理学 2007-05-23 Dan Csontos , Sergio E. Ulloa

The spin-dependent electron transmission through a helical membrane with account of linear spin-orbit interaction has been investigated by numerically solving the Schr\"odinger equation in cylindrical coordinates . It is shown that the spin…

介观与纳米尺度物理 · 物理学 2017-03-07 Guo-Hua Liang , Yong-Long Wang , Hua Jiang , Meng-Yun Lai , Hong-Shi Zong

The spin polarized charge transport is systematically analyzed as a thermally driven stochastic process. The approach is based on Kramers' equation describing the semiclassical motion under the inclusion of stochastic and damping forces.…

统计力学 · 物理学 2009-11-13 Michael Schulz , Steffen Trimper

Spin-orbit (SO) interaction critically influences electron spin dynamics and spin transport in bulk semiconductors and semiconductor microstructures. This interaction couples electron spin to dc and ac electric fields. Spin coupling to ac…

介观与纳米尺度物理 · 物理学 2009-11-10 Emmanuel I. Rashba

Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems. This article reviews the current status of this subject, including both recent advances and…

其他凝聚态物理 · 物理学 2009-11-10 Igor Zutic , Jaroslav Fabian , S. Das Sarma

Using long-distance lateral devices, spin transport near the interface of Si and its native oxide (SiO2) is studied by spin-valve measurements in an in-plane magnetic field and spin precession measurements in a perpendicular magnetic field…

材料科学 · 物理学 2013-05-29 Hyuk-Jae Jang , Ian Appelbaum

It is shown that the flow of electric current in an altermagnet results in the formation of a homogeneous electron spin orientation in the sample. The spin of the conduction electrons generated in altermagnets with $d$-wave spin-momentum…

介观与纳米尺度物理 · 物理学 2025-03-18 L. E. Golub , L. Šmejkal

Selected problems of fundamental importance for spintronics and spin-polarized transport are reviewed, some of them with a special emphasis on their applications in quantum computing and coherent control of quantum dynamics. The role of the…

介观与纳米尺度物理 · 物理学 2009-10-31 S. Das Sarma , Jaroslav Fabian , Xuedong Hu , Igor Zutic

The effect of spin-disorder scattering on perpendicular transport in a magnetic monolayer is considered within the single-site Coherent Potential Approximation (CPA). The exchange interaction between a conduction electron and localized…

无序系统与神经网络 · 物理学 2009-11-07 Alireza Saffarzadeh