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相关论文: Strong antisymmetric spin-orbit coupling and super…

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We report on the influence of spin-orbit coupling (SOC) in the Fe-based superconductors (FeSCs) via application of circularly-polarized spin and angle-resolved photoemission spectroscopy. We combine this technique in representative members…

Motivated by the recent discovery of noncentrosymmetric superconductors, such as $CePt_{3}Si$, $CeRhSi_{3}$ and $CeIrSi_{3}$, we investigate theoretically the impurity resonance states with coexisting $s$- and p-wave pairing symmetries. Due…

超导电性 · 物理学 2009-11-13 Bin Liu , Ilya Eremin

Tunable synthetic spin-orbit coupling (s-SOC) is one of the key challenges in various quantum systems, such as ultracold atomic gases, topological superconductors, and semiconductor quantum dots. Here we experimentally demonstrate…

Recently, Bi-based compounds have attracted attentions because of the strong spin-orbit coupling (SOC). In this work, we figured out the role of SOC in ABi$_{3}$ (A=Sr and Ba) by theoretical investigation of the band structures, phonon…

超导电性 · 物理学 2015-10-21 D. F. Shao , X. Luo , W. J. Lu , L. Hu , X. D. Zhu , W. H. Song , X. B. Zhu , Y. P. Sun

The theoretical studies on the electronic and lattice properties of the series of non-centrosymmetric superconductors ThTSi, where T = Co, Ni, Ir, and Pt are presented. The electronic band structure and crystal parameters were optimized…

Spin-orbit coupling (SOC) is a fundamental interaction in solids which can induce a broad spectrum of unusual physical properties from topologically non-trivial insulating states to unconventional pairing in superconductors. In iron-based…

Manipulating spin-orbit coupling (SOC) is important for devices such as spin-orbit torque based memory and its understanding is neccessary to answer several fundamental open questions in triplet state superconductivity, topological…

介观与纳米尺度物理 · 物理学 2017-09-13 Kalon Gopinadhan , A. Annadi , Younghyun Kim , Amar Srivastava , Brijesh Kumar , Jingsheng Chen , J. M. D. Coey , Ariando , T. Venkatesan

In most existing theories for iron-based superconductors, spin-orbit coupling (SOC) has been assumed insignificant. Even though recent experiments have revealed an influence of SOC on the electronic band structure, whether SOC fundamentally…

超导电性 · 物理学 2017-05-23 Mingwei Ma , Philippe Bourges , Yvan Sidis , Yang Xu , Shiyan Li , Biaoyan Hu , Jiarui Li , Fa Wang , Yuan Li

We perform a theoretical study of the leading pairing instabilities and the associated superconducting gap functions within the spin-fluctuation mediated pairing scenario in the presence of spin-orbit coupling (SOC). Focussing on iron-based…

超导电性 · 物理学 2019-09-04 Daniel D. Scherer , Brian M. Andersen

In a superconductor that lacks inversion symmetry, the spatial part of the Cooper pair wave function has a reduced symmetry, allowing for the mixing of spin-singlet and spin-triplet Cooper pairing channels and thus providing a pathway to a…

Mixing of spin singlet and spin triplet superconducting pairing state is expected in noncentrosymmetric superconductors (NCS) due to the inherent presence of Rashba-type antisymmetric spin-orbit coupling. Unlike low symmetry (tetragonal or…

超导电性 · 物理学 2015-06-23 Bhanu Joshi , A. Thamizhavel , S. Ramakrishnan

In materials without spatial inversion symmetry the spin degeneracy of the conduction electrons can be lifted by an antisymmetric spin-orbit coupling. We discuss the influence of this spin-orbit coupling on the spin susceptibility of such…

超导电性 · 物理学 2009-11-10 P. A. Frigeri , D. F. Agterberg , M. Sigrist

Noncentrosymmetric superconductors have sparked significant research interests due to their exciting properties, such as the admixture of spin-singlet and spin-triplet Cooper pairs. Here we report $\mu$SR and thermodynamic measurements on…

超导电性 · 物理学 2020-10-28 D. Singh , M. S. Scheurer , A. D. Hillier , D. T. Adroja , R. P. Singh

Effective spin mixing conductance (ESMC) across the nonmagnetic metal (NM)/ferromagnet interface, spin Hall conductivity (SHC) and spin diffusion length (SDL) in the NM layer govern the functionality and performance of pure spin current…

材料科学 · 物理学 2016-09-02 L. Ma , H. A. Zhou , L. Wang , X. L. Fan , W. J. Fan , D. S. Xue , K. Xia , G. Y. Guo , S. M. Zhou

We analytically study electronic bound states around a single vortex core in a noncentrosymmetric superconductor such as ${\rm CePt_3Si}$ without mirror symmetry about the $ab$ plane. Considering a mixed spin-singlet-triplet Cooper pairing…

超导电性 · 物理学 2007-05-23 Yuki Nagai , Yusuke Kato , Nobuhiko Hayashi

In this study, we propose an alternative route to achieving topological superconductivity (TSC). Our approach applies to a new class of correlated noncentrosymmetric materials that host two spin-split Fermi surfaces with identical spin…

超导电性 · 物理学 2026-01-28 Lichuan Wang , Ran Wang , Xinliang Huang , Xianxin Wu , Ning Hao

We study the superconducting state of multi-orbital spin-orbit coupled systems in the presence of an orbitally driven inversion asymmetry assuming that the inter-orbital attraction is the dominant pairing channel. Although the inversion…

超导电性 · 物理学 2018-06-06 Yuri Fukaya , Shun Tamura , Keiji Yada , Yukio Tanaka , Paola Gentile , Mario Cuoco

The study of spin-orbit coupling (SOC) of light is crucial to explore the light-matter interactions in sub-wavelength nanostructures with broken symmetries. In noncentrosymmetric photonic crystals, the SOC results in the splitting of the…

We numerically study the vortex core structure in a noncentrosymmetric superconductor such as CePt3Si without mirror symmetry about the xy plane. A single vortex along the z axis and a mixed singlet-triplet Cooper pairing model are…

超导电性 · 物理学 2016-08-31 N. Hayashi , Y. Kato , P. A. Frigeri , K. Wakabayashi , M. Sigrist

Spin-orbit coupling (SOC) is a relativistic effect, where an electron moving in an electric field experiences an effective magnetic field in its rest frame. In crystals without inversion symmetry, it lifts the spin degeneracy and leads to…