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相关论文: Thermally-induced spin polarization of a two dimen…

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Spin polarization induced by a temperature gradient (heat-current) in a magnetized two-dimensional electron gas (2DEG) with Rashba spin-orbit interaction is considered theoretically within the linear response theory. Using the Matsubara…

介观与纳米尺度物理 · 物理学 2018-08-15 A. Dyrdal , J. Barnas , V. K. Dugaev , J. Berakdar

Current-induced spin polarization in a two-dimensional electron gas with Rashba spin-orbit interaction is considered theoretically in terms of the Matsubara Green functions. This formalism allows to describe temperature dependence of the…

介观与纳米尺度物理 · 物理学 2017-06-14 A. Dyrdal , J. Barnas , V. K. Dugaev

Motivated by recent discovery of strongly spin-orbit coupled two-dimensional (2D) electron gas near the surface of Rashba semiconductors BiTeX (X=Cl, Br, I), we calculate thermoelectric responses of spin polarization in 2D Rashba model…

介观与纳米尺度物理 · 物理学 2016-01-19 Cong Xiao , Dingping Li , Zhongshui Ma

Spin polarization induced by an external electric field in graphene is considered theoretically in the linear response regime. The graphene is assumed to be deposited on a substrate which leads to the spin-orbit interaction of Rashba type.…

介观与纳米尺度物理 · 物理学 2015-06-17 A. Dyrdał , J. Barnaś , V. K. Dugaev

We study the spin polarization induced by a current flow in clean two dimensional electron gases with Rashba spin-orbit coupling. This geometric effect originates from special properties of the electron's scattering at the edges of the…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Reynoso , Gonzalo Usaj , C. A. Balseiro

In this paper, current-induced spin polarization for two-dimensional electron gas with a general spin-orbit interaction is investigated. For isotropic energy spectrum, the in-plane current-induced spin polarization is found to be dependent…

介观与纳米尺度物理 · 物理学 2015-05-14 C. M. Wang , H. T. Cui , Q. Lin

Based on spin-charge coupled drift-diffusion equations, which are derived from kinetic equations for the spin-density matrix in a rigorous manner, the electric-field-induced nonequilibrium spin polarization is treated for a two-dimensional…

其他凝聚态物理 · 物理学 2009-11-13 P. Kleinert , V. V. Bryksin

Motivated by the remarkable experimental control of synthetic gauge fields in ultracold atomic systems, we investigate the effect of an artificial Rashba spin-orbit coupling on the spin polarization of a two-dimensional repulsive Fermi gas.…

We calculate orbital spin-dependent magnetization in a two-dimensional electron gas with spin-orbit interaction of Rashba type. Such an orbital magnetization is admitted by the time-reversal symmetry of the system, and gives rise to spin…

介观与纳米尺度物理 · 物理学 2016-11-09 A. Dyrdał , V. K. Dugaev , J. Barnaś

We consider the magnetic response of a two-dimensional electron gas (2DEG) with a spin-orbit interaction to a long-wave-length electromagnetic excitation. We observe that the transverse electric field creates spin polarization perpendicular…

介观与纳米尺度物理 · 物理学 2007-05-23 Alexander Shnirman , Ivar Martin

Electric response of spin polarization in two-dimensional electron gas with structural inversion asymmetry subjected to a magnetic field was studied by means of the linear and non-linear theory and numerical simulation with the disorder…

介观与纳米尺度物理 · 物理学 2007-09-05 Yun-Juan Bao , Shun-Qing Shen

We investigate mesoscopic fluctuations in the spin polarization generated by a static electric field and by Rashba spin-orbit interaction in a disordered 2D electron gas. In a diagrammatic approach we find that the out-of-plane polarization…

介观与纳米尺度物理 · 物理学 2009-12-08 Mathias Duckheim , Daniel Loss

We investigate the current-induced spin polarization in the two-dimensional hole gas (2DHG) with the structure inversion asymmetry. By using the perturbation theory, we re-derive the effective $k$-cubic Rashba Hamiltonian for 2DHG and the…

介观与纳米尺度物理 · 物理学 2009-11-13 Chao-Xing Liu , Bin Zhou , Shun-Qing Shen , Bang-fen Zhu

We investigate the electron transport through a two-dimensional semiconductor with a nonuniform Rashba spin-orbit interaction. Due to the combination of the coherence effect and the Rashba interaction, a spontaneous spin-polarized current…

介观与纳米尺度物理 · 物理学 2009-11-10 Qing-feng Sun , X. C. Xie

Using the Matsubara Green's function formalism we calculate the temperature dependence of the nonequilibrium spin polarization induced by an external electric field in the presence of spin-orbit coupling. The model Hamiltonian includes an…

介观与纳米尺度物理 · 物理学 2018-06-13 L. Karwacki , A. Dyrdal , J. Berakdar , J. Barnas

We study how the Rashba spin-orbit interaction influences unconventional superconductivity in a two dimensional electron gas partially spin-polarized by a magnetic field. Somewhat surprisingly, we find that for all field orientations, only…

超导电性 · 物理学 2016-07-01 Ethan Lake , Caleb Webb , D. A. Pesin , O. A. Starykh

We briefly review the phenomenon of the spin-double refraction that originates at an interface separating a two-dimensional electron gas with Rashba spin-orbit coupling from a one without. We demonstrate how this phenomenon in semiconductor…

介观与纳米尺度物理 · 物理学 2007-05-23 D. Bercioux , V. Marigliano Ramaglia

We evaluate the charge and longitudinal spin response functions of a two-dimensional electron gas with $e^2/r$ interactions in an arbitrary state of spin polarization, using a structurally self-consistent approach to treat exchange and…

强关联电子 · 物理学 2015-06-24 B. Davoudi , M. P. Tosi

Thermoelectric coefficients of a two dimensional electron gas with the Rashba spin-orbit interaction are presented here. In absence of magnetic field, thermoelectric coefficients are enhanced due to the Rashba spin-orbit interaction. In…

介观与纳米尺度物理 · 物理学 2012-08-02 S. K. Firoz Islam , Tarun Kanti Ghosh

We study spin-dependent transport in a two-dimensional electron gas subject to an external step-like potential $V(x)$ and irradiated by an electromagnetic field (EF). In the absence of EF the electronic spectrum splits into spin sub-bands…

介观与纳米尺度物理 · 物理学 2009-11-13 M. V. Fistul , K. B. Efetov
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