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Below a continuous symmetry breaking phase transition, the relevant collective excitations are due to longitudinal and transverse fluctuations of the order parameter, which are referred to as Higgs and Goldstone modes, respectively. In…

We study the ground-state properties of electrons confined to a quantum wire and subject to a smoothly modulated Rashba spin-orbit coupling. When the period of the modulation becomes commensurate with the band filling, the Rashba coupling…

介观与纳米尺度物理 · 物理学 2009-07-28 G. I. Japaridze , Henrik Johannesson , Alvaro Ferraz

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 investigate intersubband mixing effects in multichannel quantum wires in the presence of Rashba spin-orbit coupling and attached to two terminals. When the contacts are ferromagnetic and their magnetization direction is perpendicular to…

介观与纳米尺度物理 · 物理学 2010-04-29 M. M. Gelabert , Llorens Serra , David Sanchez , Rosa Lopez

We perform an all-optical spin-dynamic measurement of the Rashba spin-orbit interaction in (110)-oriented GaAs/AlGaAs quantum wells. The crystallographic direction of quantum confinement allows us to disentangle the contributions to…

其他凝聚态物理 · 物理学 2007-08-01 P. S. Eldridge , W. J. H. Leyland , P. G. Lagoudakis , O. Z. Karimov , M. Henini , D. Taylor , R. T. Phillips , R. T. Harley

The tunability of the Rashba spin-orbit coupling allows to build semiconductor heterostructures with space modulated coupling intensities. We show that a wire-shaped spin-orbit modulation in a quantum well can support propagating electronic…

介观与纳米尺度物理 · 物理学 2009-11-07 Manuel Valin-Rodriguez , Antonio Puente , Llorens Serra

We theoretically study the direct and inverse spin Hall effects in a superconductor-normal metal-superconductor junction induced by a spin-orbit interaction that is invariant under spatial inversion. We show that a supercurrent induces a…

介观与纳米尺度物理 · 物理学 2026-04-17 Gen Tatara , Yositake Takane , Aurelien Manchon

Using spin and angle-resolved photoemission spectroscopy we investigate a momentum region in Pb quantum well states on Si(111) where hybridization between Rashba-split bands alters the band structure significantly. Starting from the Rashba…

材料科学 · 物理学 2014-03-24 Bartosz Slomski , Gabriel Landolt , Stefan Muff , Fabian Meier , Jürg Osterwalder , J. Hugo Dil

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

Spin orbit coupling plays a non-perturbation effect in many recently developed novel fields including topological insulators and spin-orbit assistant Mott insulators. In this paper, strongly temperature-dependent spin orbit coupling,…

材料科学 · 物理学 2014-06-17 Lunyong Zhang , Y. B. Chen , Jian Zhou , Shan-Tao Zhang , Zheng-bin Gu , Shu-Hua Yao , Yan-Feng Chen

We investigate the thermal physics of a Bose-Hubbard model with Rashba spin-orbit coupling starting from a strong coupling mean-field ground state. The essential role of the spin-orbit coupling $\left(\gamma\right)$ is to promote…

强关联电子 · 物理学 2019-05-22 Arijit Dutta , Abhishek Joshi , K. Sengupta , Pinaki Majumdar

We use a mean field approach to study the conductance modulation of gate controlled semiconductor spin interferometers based on the Rashba spin-orbit coupling effect. The conductance modulation is found to be mostly due to Ramsauer type…

介观与纳米尺度物理 · 物理学 2013-05-29 M. Cahay , S. Bandyopadhyay

Spin-orbit interaction accounts for the coupling of momentum and spin degrees of freedom of electrons and holes in semiconductor materials. In quantum information processing, it allows for electrical control of spin states and for the…

Recent experiments in semiconductor nanowires with a spin-orbit coupling and proximity-induced superconductivity exhibit signatures of Majorana bound states predicted to exist in the topological phase. In this work we predict that these…

介观与纳米尺度物理 · 物理学 2012-12-11 Teemu Ojanen

Inversion symmetry is a key symmetry in unconventional superconductors and even its local breaking can have profound implications. For inversion-symmetric systems, there is a competition on a microscopic level between the spin-orbit…

超导电性 · 物理学 2021-08-11 Anastasiia Skurativska , Manfred Sigrist , Mark H. Fischer

It is shown that the Rashba and Dresselhaus spin orbit couplings enhance the conclusive power in the experiments on the excitonic condensed state by at least three low temperature effects. First, spin orbit coupling facilitates the…

强关联电子 · 物理学 2015-05-13 M. Ali Can , T. Hakioğlu

We study impacts of spin-orbit interactions on the spin susceptibility in quasicrystal superconductors, motivated by the anomolous superconducting properties in the van der Waals quasicrystal Ta$_{1.6}$Te under magnetic fields. We consider…

超导电性 · 物理学 2025-12-18 Yasuhiro Tada

We report the observation of superconductivity with multiple magnetic ordering and Rashba-type spin-orbit coupling in a layered polar semimetal EuAuBi. Magnetic transition is observed at 4 K, followed by a superconducting transition at 2.2…

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 derive the ac spin-Hall conductivity $\sigma_{\rm sH}(\omega)$ of two-dimensional spin-orbit coupled systems interacting with dispersionless phonons of frequency $\omega_0$. For the linear Rashba model we show that the electron-phonon…

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