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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

We consider a single-level quantum dot coupled to two leads which are ferromagnetic in general. Apart from tunneling processes conserving electron spin, we also include processes associated with spin-flip of tunneling electrons, which…

介观与纳米尺度物理 · 物理学 2018-08-22 Łukasz Karwacki , Józef Barnaś

We consider the Higgs mode at nonzero momentum in superconductors and demonstrate that in the presence of Rashba spin-orbit coupling, it couples linearly with an external exchange field. The Higgs-spin coupling dramatically modifies the…

超导电性 · 物理学 2025-02-10 Yao Lu , Risto Ojajärvi , P. Virtanen , M. A. Silaev , Tero T. Heikkilä

The Rashba spin-orbit coupling arising from structure inversion asymmetry couples spin and momentum degrees of freedom providing a suitable (and very intensively investigated) environment for spintronic effects and devices. Here we show…

介观与纳米尺度物理 · 物理学 2015-10-28 Goetz Seibold , Sergio Caprara , Marco Grilli , Roberto Raimondi

Topological superconductors as characterized by Majorana surface states has been actively searched for their significance in fundamental science and technological implication. The large spin-orbit coupling in Bi-Pd binaries has stimulated…

超导电性 · 物理学 2017-08-30 Hongchul Choi , Madhab Neupane , T. Sasagawa , Elbert E. M. Chia , Jian-Xin Zhu

Spin singlet superconductors with quasi-two dimensional multilayer structure are studied in high magnetic fields. Specifically we concentrate on bi- and tri-layer systems whose layers by symmetry are subject Rashba-type spin-orbit coupling.…

超导电性 · 物理学 2015-06-11 Tomohiro Yoshida , Manfred Sigrist , Youichi Yanase

The weak-coupling renormalization group method is an asymptotically exact method to find superconducting instabilities of a lattice model of correlated electrons. Here we extend it to spin-orbit coupled lattice systems and study the…

超导电性 · 物理学 2020-12-02 Sebastian Wolf , Stephan Rachel

Rashba spin-orbit splitting in the magnetic materials opens up a new perspective in the field of spintronics. Here, we report a giant Rashba-type spin-orbit effect on PrGe [010] surface in the paramagnetic phase with Rashba coefficient…

We present a general model with both Rashba and Dresselhaus spin-orbit couplings to describe a two-dimensional noncentrosymmetric superconductor. The combined effects of the two spin-orbit couplings on superconductivity are investigated in…

超导电性 · 物理学 2022-03-23 Xu Yan , Qiang Gu

We evaluate the transport coefficients of a two-dimensional electron gas (2DEG) in the presence of a perpendicular magnetic field and of the spin-orbit interaction (SOI) described only by the Rashba term. The SOI mixes the spin-up and…

介观与纳米尺度物理 · 物理学 2016-08-31 X. F. Wang , P. Vasilopoulos

We study the scattering of an electron in a definite state of spin at an interface of an hybrid system with a Rashba spin-orbit coupling on one side. Out of the normal incidence the double refraction phenomenon appears, with one or two…

介观与纳米尺度物理 · 物理学 2007-05-23 V. Marigliano Ramaglia , V. Cataudella , G. De Filippis , C. A. Perroni , F. Ventriglia

Spin-split Rashba bands have been exploited to efficiently control the spin degree of freedom of moving electrons, which possesses a great potential in frontier applications of designing spintronic devices and processing spin-based…

Motivated by the prospect of realizing a Fermi gas of $^{40}$K atoms with a synthetic non-Abelian gauge field, we investigate theoretically a strongly interacting Fermi gas in the presence of a Rashba spin-orbit coupling. As the two-fold…

量子气体 · 物理学 2011-11-18 Hui Hu , Lei Jiang , Xia-Ji Liu , Han Pu

Spin-orbit coupling is an important ingredient in many recently discovered phenomena such as the spin-Hall effect and topological insulators. Of particular interest is topological superconductivity, with its potential application in…

量子气体 · 物理学 2011-04-28 Jay D. Sau , Rajdeep Sensarma , Stephen Powell , I. B. Spielman , S. Das Sarma

We present a theoretical study of magnetoplasmon spectrum of a two-dimensional electron gas in the presence of Rashba spin-orbit interaction (RSOI), one-dimensional weak electric modulation and a perpendicular magnetic field. The…

介观与纳米尺度物理 · 物理学 2015-05-18 M. Tahir , K. Sabeeh

IrTe$_2$ has been renewed as an interesting system showing competing phenomenon between a questionable density-wave transition near 270 K followed by superconductivity with doping of high atomic number materials. Higher atomic numbers of Te…

强关联电子 · 物理学 2016-08-26 S. Koley

We study the interacting Fermi-Hubbard model in two spatial dimensions with synthetic gauge coupling of the spin orbit Rashba type, at half-filling. Using real space mean field theory, we numerically determine the phase as a function of the…

强关联电子 · 物理学 2014-01-08 Jiří Minář , Benoît Grémaud

We investigate the effect that Rashba spin-orbit coupling has on the low energy behaviour of a two dimensional magnetic impurity system. It is shown that the Kondo effect, the screening of the magnetic impurity at temperatures T < T_K, is…

强关联电子 · 物理学 2007-11-01 Justin Malecki

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 investigated effects of a Rashba-type spin-orbit coupling (SOC) on the condensed density and superfluid density tensor of a two-component Fermi gas in the BCS-BEC crossover at zero temperature. In anisotropic three dimensions (3D), we…

量子气体 · 物理学 2015-05-30 Kezhao Zhou , Zhidong Zhang