中文
相关论文

相关论文: Polarization of a quasi two-dimensional repulsive …

200 篇论文

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 recent progress on ultracold atomic Fermi gases with different types of synthetic spin-orbit coupling, including the one-dimensional (1D) equal weight Rashba-Dresselhaus and two-dimensional (2D) Rasbha spin-orbit…

量子气体 · 物理学 2017-08-23 Jing Zhang , Hui Hu , Xia-Ji Liu , Han Pu

The z axis magnetization of a two dimensional electron gas with contact repulsive interaction and in presence of a Rashba potential is computed by means of quantum field theory at second order. A striking effect of the pure Rashba…

介观与纳米尺度物理 · 物理学 2011-12-21 Alberto Ambrosetti , Pier Luigi Silvestrelli , Flavio Toigo

We study a model of a two-dimensional repulsive Fermi gas with Rashba spin-orbit coupling $\alpha_R$, and investigate the superconducting instability using renormalization group approach. We find that in general superconductivity is…

超导电性 · 物理学 2011-11-07 Oskar Vafek , Luyang Wang

The recent experimental realization of spin-orbit coupled Fermi gases provides a unique opportunity to study the interplay between strong interaction and SOC in a tunable, disorder-free system. We present here precision ab initio numerical…

量子气体 · 物理学 2016-07-21 Hao Shi , Peter Rosenberg , Simone Chiesa , Shiwei Zhang

Strong spin-orbit coupling can have a profound effect on the electronic structure in a metal or semiconductor, particularly for low electron concentrations. We show how, for small values of the Fermi energy compared to the spin-orbit…

介观与纳米尺度物理 · 物理学 2009-11-11 E. Cappelluti , C. Grimaldi , F. Marsiglio

We report on the quantum interference and spin accumulation on double quantum dots with Rashba spin-orbit coupling and electron-electron interaction, based on the Keldysh nonequilibrium Green function formalism. It is shown that Rashba…

介观与纳米尺度物理 · 物理学 2009-11-13 Kuo-Wei Chen , Ching-Ray Chang

We study the effect of the Rashba spin-orbit coupling on the Fermi arcs of topological Dirac semimetals. The Rashba coupling is induced by breaking the inversion symmetry at the surface. Remarkably, this coupling could be enhanced by the…

介观与纳米尺度物理 · 物理学 2021-02-12 Yuriko Baba , Francisco Domínguez-Adame , Gloria Platero , Rafael A. Molina

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such control mechanisms to coherent spin-dependent transport in one- and two-dimensional rings subject to Rashba…

介观与纳米尺度物理 · 物理学 2009-11-10 Diego Frustaglia , Klaus Richter

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

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

The Rashba effect is one of the most striking manifestations of spin-orbit coupling in solids, and provides a cornerstone for the burgeoning field of semiconductor spintronics. It is typically assumed to manifest as a momentum-dependent…

Spin polarization of a two-dimensional electron gas with Rashba spin-orbit interaction, induced by a thermo-current, is considered theoretically. It is shown that a temperature gradient gives rise to an in-plane spin polarization of the…

介观与纳米尺度物理 · 物理学 2013-08-27 A. Dyrdał , M. Inglot , V. K. Dugaev , J. Barnaś

We explore the trap profiles of a two-dimensional atomic Fermi gas in the presence of a Rashba spin-orbit coupling and under an adiabatic rotation. We first consider a non-interacting gas and show that the competition between the effects of…

量子气体 · 物理学 2017-01-04 E. Doko , A. L. Subasi , M. Iskin

We consider interacting ultracold fermions subject to Rashba spin-orbit coupling. We construct a single-branch interacting theory for the Fermi gas when the system is dilute enough so that the positive helicity branch is not occupied at all…

量子气体 · 物理学 2013-06-25 Daniel Maldonado-Mundo , Patrik Ohberg , Manuel Valiente

We describe the treatment of Rashba spin-orbit coupling (SOC) in interacting many-fermion systems within the auxiliary-field quantum Monte Carlo framework, and present a set of illustrative results. These include numerically exact…

强关联电子 · 物理学 2019-06-10 Peter Rosenberg , Hao Shi , Shiwei Zhang

We investigate the zero-temperature properties of a quasi-ideal Fermi gas with Rashba spin-orbit coupling. We find that the spin-orbit term strongly affects the speeds of zero sound and first sound in the Fermi gas, due to the presence of a…

量子气体 · 物理学 2014-06-03 Luca Salasnich

We investigate the effect of strong spin-orbit interaction on the electronic transport through non-magnetic impurities in one-dimensional systems. When a perpendicular magnetic field is applied, the electron spin polarization becomes…

材料科学 · 物理学 2007-05-23 R. G. Pereira , E. Miranda

We investigate theoretically BEC-BCS crossover physics in the presence of a Rashba spin-orbit coupling in a system of two-component Fermi gas with and without a Zeeman field that breaks the population balance between the two components. A…

量子气体 · 物理学 2012-11-26 Lei Jiang , Xia-Ji Liu , Hui Hu , Han Pu

Strong spin-orbit coupling in noncentrosymmetric materials and interfaces results in remarkable physical phenomena, such as nontrivial spin textures, which may exhibit Rashba, Dresselhaus, and other intricated configurations. This provides…

介观与纳米尺度物理 · 物理学 2021-11-15 Thorsten Aull , Igor V. Maznichenko , Sergey Ostanin , Ersoy Şaşıoğlu , Ingrid Mertig
‹ 上一页 1 2 3 10 下一页 ›