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We study the superconducting diode effect (SDE) in an Ising superconductor with broken basal mirror symmetry in a parallel magnetic field. We show that in the presence of a small Rashba spin splitting, $\Delta_R$, the dominant Ising…

超导电性 · 物理学 2025-05-14 Itai Bankier , Lotan Attias , Alex Levchenko , Maxim Khodas

We study the in-plane critical magnetic field of two-dimensional Ising superconducting systems, and propose the microscopic theory for these systems with or without inversion symmetry. Protected by certain specific spin-orbit interaction…

超导电性 · 物理学 2020-11-26 Hongchao Liu , Haiwen Liu , Ding Zhang , X. C. Xie

An unusual form of superconductivity, called Ising superconductivity, has recently been uncovered in mono- and few-layered transition metal dichalcogenides. This 2D superconducting state is characterized by the so-called Ising spin-orbit…

强关联电子 · 物理学 2024-02-20 Gargee Sharma , Sumanta Tewari

Rashba-type spin-orbit interaction (SOI) controlled band structure of a two-dimensional superlattice allows for the modulation of the conductance of finite size devices by changing the strength of the SOI. We consider rectangular arrays and…

介观与纳米尺度物理 · 物理学 2015-06-24 Peter Foldi , Viktor Szaszko-Bogar , F. M. Peeters

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

A general expression for the spin Hall conductivity (SHC) in the s-wave superconducting state at finite temperatures is derived. Based on the expression, we study the SHC in a two-dimensional electron gas model in the presence of Rashba…

介观与纳米尺度物理 · 物理学 2009-11-13 H. Kontani , J. Goryo , D. S. Hirashima

In the quest for exotic superconducting pairing states, the Rashba effect, which lifts the electron-spin degeneracy as a consequence of strong spin-orbit interaction (SOI) under broken inversion symmetry, has attracted considerable…

We study the Kondo screening of a magnetic impurity in a two-dimensional superconductor with Rashba spin-orbit coupling (SOC). It is found that the Rashba interaction generates a novel Kondo screening channel, in which the local moment is…

强关联电子 · 物理学 2018-03-13 Lin Li , Ming-Xin Gao , Zhen-Hua Wang , Hong-Gang Luo , Wei-Qiang Chen

Spin-momentum locking is essential to the spin-split Fermi surfaces of inversion-symmetry broken materials, which are caused by either Rashba-type or Zeeman-type spin-orbit coupling (SOC). While the effect of Zeeman-type SOC on…

Ising spin-orbit coupling (ISOC) can strongly protect superconductivity against exchange-field-induced depairing, typically leading to critical fields far exceeding the Pauli limit and continuous (second-order) phase transitions. Here,…

超导电性 · 物理学 2026-05-06 Xusheng Wang , Gaomin Tang , Shuai-hua Ji

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

The upper critical field in type II superconductors is limited by the Pauli paramagnetic limit. In superconductors with strong Rashba spin-orbit coupling this limit can be overcome by forming a helical state. Here we quantitatively study…

超导电性 · 物理学 2021-01-27 L. A. B. Olde Olthof , J. R. Weggemans , G. Kimbell , J. W. A. Robinson , X. Montiel

The influence of Rashba spin-orbit coupling (SOC) on superconducting correlations in thin-film superconductor/antiferromagnet (S/AF) structures with compensated interfaces is studied. A unique effect of anisotropic enhancement of…

超导电性 · 物理学 2023-10-17 G. A. Bobkov , I. V. Bobkova , A. A. Golubov

It is commonly believed that time reversal symmetry breaking perturbations such as magnetic field or scattering on magnetic impurities destruct superconductivity and suppress the critical temperature of the superconducting phase transition.…

超导电性 · 物理学 2024-06-10 Zh. Devizorova , A. I. Buzdin

We explain how Rashba spin-orbit coupling (SOC) in a two-dimensional electron gas (2DEG), or in a conventional $s$-wave superconductor, can lead to a large magnetoresistance even with one ferromagnet. However, such enhanced…

介观与纳米尺度物理 · 物理学 2023-08-15 Chenghao Shen , Ranran Cai , Alex Matos-Abiague , Wei Han , Jong E. Han , Igor Zutic

We have studied the tunneling conductance in two dimensional electron gas / insulator / superconductor junctions in the presence of Rashba spin-orbit coupling (RSOC). It is found that for low insulating barrier the tunneling conductance is…

超导电性 · 物理学 2009-11-11 T. Yokoyama , Y. Tanaka , J. Inoue

In two-dimensional superconductors with a Rashba-type spin-orbit coupling, it is known that an in-plane magnetic field can induce a helical superconducting (SC) state with a phase modulation $e^{i {\bf q}\cdot {\bf r}}$. Here, we…

超导电性 · 物理学 2024-10-02 Kazushi Aoyama

Recent discovery of Ising superconductivity protected against in-plane magnetic field by spin-orbit coupling (SOC) has stimulated intensive research interests. The effect, however, was only expected to appear in two-dimensional (2D)…

超导电性 · 物理学 2019-09-25 Chong Wang , Biao Lian , Xiaomi Guo , Jiahao Mao , Zetao Zhang , Ding Zhang , Bing-Lin Gu , Yong Xu , Wenhui Duan

We investigate the effects of interfacial spin-orbit coupling (ISOC) on superconductors, focusing on its impact on electronic transport and spin-charge conversion. Using a symmetry-based nonlinear sigma model, we derive effective boundary…

超导电性 · 物理学 2025-09-16 A. A. Mazanik , Tim Kokkeler , I. V. Tokatly , F. Sebastian Bergeret

We investigate thermoelectric properties of a ferromagnet-superconductor hybrid structure with Rashba spin-orbit interaction and delta function potential barrier at the interfacial layer. The exponential rise of thermal conductance with…

介观与纳米尺度物理 · 物理学 2017-09-07 Paramita Dutta , Arijit Saha , A. M. Jayannavar
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