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We investigate the spin accumulation effect in eccentric semiconductor multichannel rings with Rashba spin-orbit interaction and threaded by a magnetic flux. Due to the finite eccentricity, the spin polarization induced at the borders of…

介观与纳米尺度物理 · 物理学 2015-05-13 L. E. Segura , M. J. Sánchez

The inverse Faraday effect (IFE) refers to the generation of a DC magnetization by circularly polarized light through the transfer of optical angular momentum to electronic degrees of freedom. In conducting systems, this response can arise…

介观与纳米尺度物理 · 物理学 2026-03-16 Jaglul Hasan , Chandan Setty

We show that in a two dimensional electron gas (2DEG) the interplay between the Rashba spin-orbit coupling and a potential barrier (eg., the sample edge) generates interesting spin effects. In the presence of an external charge current, a…

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

We study pairing formation and the appearance of induced spin-triplet p-wave superfluidity in dilute three-dimensional imbalanced Fermi gases in the presence of a uniform non-Abelian gauge field. This gauge field generates a synthetic…

量子气体 · 物理学 2015-09-02 Heron Caldas , Mucio Continentino

We study numerically the effects of the Rashba spin-orbit interaction on the model of electrons in n-doped semiconductors of Matsubara and Toyozawa (MT). We focus on the analysis of the density of states (DOS) and the inverse participation…

介观与纳米尺度物理 · 物理学 2013-03-08 Guido A. Intronati , Pablo I. Tamborenea , Dietmar Weinmann , Rodolfo A. Jalabert

Ultrathin magnetic systems have properties qualitatively different from their thicker counterparts, implying that different physics governs their properties. We demonstrate that various such properties can be explained naturally by the…

介观与纳米尺度物理 · 物理学 2015-03-19 Kyoung-Whan Kim , Soo-Man Seo , Jisu Ryu , Kyung-Jin Lee , Hyun-Woo Lee

We study impurity effects in the spin nematic phase of the $S=1/2$ $J_1$-$J_2$ frustrated spin chain under an external magnetic field by using the infinite density matrix renormalization group and the bosonization. It is found that local…

强关联电子 · 物理学 2024-03-15 Fumiya Nakamura , Yasuhiro Tada

Motivated by recent experiments on all-optical magnetization reversal in conductive ferromagnetic thin films we use nonequilibrium formalism to calculate the effective magnetic field induced in a Rashba ferromagnet by a short laser pulse.…

介观与纳米尺度物理 · 物理学 2016-07-25 Alireza Qaiumzadeh , Mikhail Titov

Spin electromagnetic fields driven by the Rashba spin-orbit interaction, or Rashba-induced spin Berry's phase, in ferromagnetic metals is theoretically studied based on the Keldysh Green's function method. Considering a limit of strong sd…

介观与纳米尺度物理 · 物理学 2015-06-16 Noriyuki Nakabayashi , Gen Tatara

Superconductors containing magnetic impurities exhibit intriguing phenomena derived from the competition between Cooper pairing and Kondo screening. At the heart of this competition are the Yu-Shiba-Rusinov (Shiba) states which arise from…

The spin-charge coupled dynamics in a thin, magnetized metallic system are investigated. The effective driving force acting on the charge carriers is generated by a dynamical magnetic texture, which can be induced, e.g., by a magnetic…

介观与纳米尺度物理 · 物理学 2017-03-06 Sebastian Tölle , Ulrich Eckern , Cosimo Gorini

How ferromagnetic phases emerge in itinerant systems is an outstanding problem in quantum magnetism. Here we consider a repulsive two-component Fermi gas confined in a two dimensional isotropic harmonic potential and subject to a large…

量子气体 · 物理学 2016-04-13 Shang-Shun Zhang , Wu-Ming Liu , Han Pu

We study the Kondo screening of a magnetic impurity adsorbed in graphene in the presence of Rashba spin-orbit interaction. The system is described by an effective single-channel Anderson impurity model, which we analyze using the numerical…

强关联电子 · 物理学 2014-07-22 Diego Mastrogiuseppe , Arturo Wong , Kevin Ingersent , Sergio Ulloa , Nancy Sandler

Far infrared radiation absorption of a quantum dot with few electrons in an orthogonal magnetic field could monitor the crossover to the fully spin polarized state. A Rashba spin-orbit coupling can tune the energy and the spin density of…

强关联电子 · 物理学 2009-11-11 P. Lucignano , B. Jouault , A. Tagliacozzo , B. L. Altshuler

We investigate the new physics that arises when a correlated quantum impurity hybridizes with Fermi gas with a generalized Rashba spin-orbit coupling produced via a uniform synthetic non-Abelian gauge field. We show that the impurity…

量子气体 · 物理学 2016-06-29 Adhip Agarwala , Vijay B. Shenoy

In graphene, we report the first theoretical demonstration of how the intrinsic spin orbit interaction can be deduced from the theory and how it can be controlled by tuning a uniform magnetic field, and/or by changing the strength of a long…

介观与纳米尺度物理 · 物理学 2019-07-09 B. S. Kandemir

Spin transport properties of a coupled bilayer electron gas with Rashba spin-orbit coupling are studied. The definition of the spin currents in each layer as well as the corresponding continuity-like equations in the bilayer system are…

介观与纳米尺度物理 · 物理学 2007-12-22 Pei-Qing Jin , You-Quan Li

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

By converting conventional spin-singlet Cooper pairs to polarized spin-triplet pairs, it is possible to sustain long-ranged spin-polarized supercurrents flowing through strongly polarized ferromagnets. Obtaining such a conversion via…

超导电性 · 物理学 2020-01-01 Johannes R. Eskilt , Morten Amundsen , Niladri Banerjee , Jacob Linder

Strong interest has arisen recently on low-dimensional systems with strong spin-orbit interaction due to their peculiar properties of interest for some spintronic applications. Here, the time evolution of the electron spin polarization of a…

介观与纳米尺度物理 · 物理学 2009-11-11 C. Grimaldi