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相关论文: Understanding Lorentz violation with Rashba intera…

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The ability of spin-orbit interactions to convert charge current into spin current, most often in the bulk of heavy metal thin films, has been the hallmark of spintronics in the last decade. In this study, we demonstrate how the insertion…

介观与纳米尺度物理 · 物理学 2022-06-27 S. Krishnia , Y. Sassi , F. Ajejas , N. Reyren , S. Collin , A. Fert , J. -M. George , V. Cros , H. Jaffres

Superconductor--semiconductor hybrid devices are currently attracting much attention, fueled by the fact that strong spin--orbit interaction in combination with induced superconductivity can lead to exotic physics with potential…

介观与纳米尺度物理 · 物理学 2023-02-22 Jonas Lidal , Jeroen Danon

The spin-degeneracy of Bloch bands in a crystal can be lifted when spin-orbit (SO) coupling is present and inversion symmetry is absent. In two-dimensional electron systems (2DES) spin-degeneracy is lifted by Rashba interaction terms -…

强关联电子 · 物理学 2013-07-16 Guru Khalsa , Byounghak Lee , A. H. MacDonald

We investigate the single and multiple defects embedded in a superconducting host, studying interplay between the proximity induced pairing and interactions. We explore influence of the spin-orbit coupling on energies, polarization and…

介观与纳米尺度物理 · 物理学 2018-05-08 S. Glodzik , A. Kobialka , A. Gorczyca-Goraj , A. Ptok , G. Gorski , M. M. Maska , T. Domanski

We have performed a complete study of BPS vortex solutions in the Abelian sector of the standard model extension (SME). Specifically, we have coupled the SME electromagnetism with a Higgs field which is supplemented with a Lorentz-violating…

高能物理 - 理论 · 物理学 2014-10-27 R. Casana , G. Lazar

In attempts to unify the four known fundamental forces in a single quantum-consistent theory, it is suggested that Lorentz symmetry may be broken at the Planck scale. Here we search for Lorentz violation at the low-energy limit by comparing…

The violation of Lorentz symmetry can arise in a variety of approaches to fundamental physics. For the description of the associated low-energy effects, a dynamical framework known as the Standard-Model Extension has been developed. This…

高能物理 - 唯象学 · 物理学 2007-05-23 Ralf Lehnert

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

We study theoretically the proximity effect in a ferromagnetic semiconductor with Rashba spin-orbit interaction. The exchange potential generates opposite-spin-triplet Cooper pairs which are transformed into equal-spin-triplet pairs by the…

超导电性 · 物理学 2019-09-11 Taketoki Yamashita , Jaechul Lee , Tetsuro Habe , Yasuhiro Asano

The spin-orbit -induced spin splitting of energy bands in low symmetry compounds (the Rashba Effect) has a long-standing relevance to spintronic applications and to the fundamental understanding of symmetry breaking in solids, yet the…

材料科学 · 物理学 2020-09-01 Carlos Mera Acosta , Elton Ogoshi , Adalberto Fazzio , Gustavo Dalpian , Alex Zunger

The emergent induction of spiral magnets that was proposed [Jpn. J. Appl. Phys. 58, 120909 (2019)] and recently demonstrated [Nature 586, 232 (2020)] is shown to be further extended by a comprehensive treatment of the Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2021-03-05 Jun'ichi Ieda , Yuta Yamane

Spin-orbit coupling effects are studied in quantum dots in InSb, a narrow-gap material. Competition between different Rashba and Dresselhaus terms is shown to produce wholesale changes in the spectrum. The large (and negative) $g$-factor…

介观与纳米尺度物理 · 物理学 2009-11-10 C. F. Destefani , S. E. Ulloa , G. E. Marques

Lorentz and CPT symmetries may be violated in new physics that emerges at very high energy scale, i.e., at the Planck scale. The differential cross section of the M\"oller scattering, due to Lorentz violation at finite temperature is…

高能物理 - 理论 · 物理学 2018-04-24 A. F. Santos , Faqir C. Khanna

We theoretically explore the possibility of creating spin quantum entanglement in a system of two electrons confined respectively in two vertically coupled quantum dots in the presence of Rashba type spin-orbit coupling. We find that the…

介观与纳米尺度物理 · 物理学 2009-11-11 Nan Zhao , L. Zhong , Jia-Lin Zhu , C. P. Sun

This work reports the theoretical investigation into the mechanism underpinning the anomalous Josephson effect. The prototypical system we study is a ballistic two-dimensional junction containing a two-dimensional Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2024-03-11 Ross D. Monaghan , Giuseppe C. Tettamanzi

Interactions of ultracold atoms with Rashba spin-orbit coupling, currently being studied with simulated (artificial) gauge fields, have nontrivial ultraviolet and infrared behavior. Examining the ultraviolet structure of the Bethe-Salpeter…

量子气体 · 物理学 2011-10-14 Tomoki Ozawa , Gordon Baym

The presence of low-symmetry impurities or defect complexes in the zinc-blende direct-gap semiconductors (e.g. interstitials, DX-centers) results in a novel spin-orbit term in the effective Hamiltonian for the conduction band. The new…

无序系统与神经网络 · 物理学 2015-03-19 Oleg Chalaev , G. Vignale , Michael E. Flatté

We have studied a quantum dot with Rashba spin orbit interaction on a plane where the position and momentum coordinates are considered to be noncommutative. The energy spectrum of the system is found to be equivalent to that of a quantum…

高能物理 - 理论 · 物理学 2013-04-26 B. K. Pal , B. Roy , B. Basu

In this work, we explore the intriguing spin-momentum locking phenomenon within the Rashba states of antimony (Sb) films. By combining spin pumping with the flow of an external charge current, we reveal the topological properties of surface…

介观与纳米尺度物理 · 物理学 2025-06-24 J. E. Abrão , E. Gomes da Silva , G. Rodrigues-Junior , J. B. S. Mendes , A. Azevedo

We study the formation of local moments in quantum dots arising in quasi-one dimensional electron wires due to localized spin-orbit (Rashba) interaction. Using an Anderson-like model to describe the occurrence of the magnetic moments in…

强关联电子 · 物理学 2009-11-13 Mircea Crisan , David Sanchez , Rosa Lopez , Llorens Serra , Ioan Grosu