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The dielectric permeability tensor for spin polarized plasmas derived in terms of the spin-1/2 quantum kinetic model in six-dimensional phase space in Part I of this work is applied for study of spectra of high-frequency transverse and…

等离子体物理 · 物理学 2017-03-08 Pavel A. Andreev

We consider a 2D ballistic and quasi-ballistic structures with spin-orbit-related splitting of the electron spectrum. The ballistic region is attached to the leads with a voltage applied between them. We calculate the edge spin density…

介观与纳米尺度物理 · 物理学 2015-06-04 Alexander Khaetskii , Eugene Sukhorukov

We analytically solve the {\it Non-Markovian} single electron spin dynamics due to hyperfine interaction with surrounding nuclei in a quantum dot. We use the equation-of-motion method assisted with a large field expansion, and find that…

介观与纳米尺度物理 · 物理学 2009-11-11 Changxue Deng , Xuedong Hu

The zero-temperature magnetic field-dependent conductance of electrons through a one-dimensional non-interacting tight-binding chain with an interacting {\it side} dot is reviewed and analized further. When the number of electrons in the…

强关联电子 · 物理学 2007-05-23 M. E. Torio , K. Hallberg , C. Proetto

Electron transport in a new low-dimensional structure - the nuclear spin polarization induced quantum wire (NSPI QW) is theoretically studied. In the proposed system the local nuclear spin polarization creates the effective hyperfine field…

介观与纳米尺度物理 · 物理学 2009-11-07 Yu. V. Pershin , S. N. Shevchenko , I. D. Vagner , P. Wyder

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

The coupled nonlinear coordinate and spin dynamics of an electron in a double quantum dot with spin-orbit interaction is studied semiclassically. The system is driven by an electric field with the frequency matching the orbital or the…

介观与纳米尺度物理 · 物理学 2009-06-29 D. V. Khomitsky , E. Ya. Sherman

We investigate a possibility of pair electron-electron e-e collisions in a ballistic wire with spin-orbit coupling and only one populated mode. Unlike in a spin-degenerate system, a combination of spin-splitting in momentum space with a…

介观与纳米尺度物理 · 物理学 2018-09-12 V. S. Khrapai , K. E. Nagaev

Few-electron systems confined in a quantum dot laterally coupled to a surrounding quantum ring in the presence of an external magnetic field are studied by exact diagonalization. The distribution of electrons between the dot and the ring is…

介观与纳米尺度物理 · 物理学 2009-11-10 B. Szafran , F. M. Peeters , S. Bednarek

Here we propose an isotropic all electrical spin analyzer in a quantum ring with spin-orbit coupling by analytically and numerically modeling how the charge transmission rates depend on the polarization of the incident spin. The formalism…

介观与纳米尺度物理 · 物理学 2021-03-17 Shenglin Peng , Wenchen Luo , Jian Sun , Ai-Min Guo , Fangping Ouyang , Tapash Chakraborty

Controlling nanocircuits at the single electron spin level is a possible route for large-scale quantum information processing. In this context, individual electron spins have been identified as versatile quantum information carriers to…

介观与纳米尺度物理 · 物理学 2017-11-01 H. Flentje , P-A. Mortemousque , R. Thalineau , A. Ludwig , A. D. Wieck , C. Bäuerle , T. Meunier

The effect of weak localization on spin relaxation in a two-dimensional system with a spin-split spectrum is considered. It is shown that the spin relaxation slows down due to the interference of electron waves moving along closed paths in…

介观与纳米尺度物理 · 物理学 2009-11-10 I. S. Lyubinskiy , V. Yu. Kachorovskii

Because of the peculiar coupling of spatial and spin degrees of freedom effected by the Rashba spin-orbit interaction, lateral confinement of a two dimensional electronic system leads to a finite transverse spin polarization near the…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Chesi , G. F. Giuliani

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

We develop a theory of electron transport through quantum dots that are weakly coupled to ferromagnetic leads. The theory covers both the linear and nonlinear transport regime, takes non-collinear magnetization of the leads into account,…

介观与纳米尺度物理 · 物理学 2009-11-10 Matthias Braun , Jürgen König , Jan Martinek

We study the evolution and distribution of non-equilibrium electron spin polarization in n-type semiconductors within the two-component drift-diffusion model in an applied electric field. Propagation of spin-polarized electrons through a…

介观与纳米尺度物理 · 物理学 2010-10-12 Yuriy V. Pershin , Vladimir Privman

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

We report calculations of spin relaxation dynamics of two-dimensional electron gas with spin-orbit interaction at the edge region. It is found that the relaxation of spin polarization near the edge is more slow than relaxation in the bulk.…

介观与纳米尺度物理 · 物理学 2016-08-31 Yuriy V. Pershin

We study a system in which electrons in a two-dimensional electron gas are confined by a nonhomogeneous nuclear spin polarization. The system consists of a heterostructure that has non-zero nuclei spins. We show that in this system…

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

We prove that the predicted charge transfer state in symmetric bilayers of two dimensional electron gases is always unstable at zero bias voltage, due to interlayer correlation and/or tunneling. This is most easily seen by resorting to a…

凝聚态物理 · 物理学 2009-10-28 Sergio Conti , Gaetano Senatore