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High-temperature superconductors (high-Tc SCs) host a rich landscape of electronic phases encompassing the pseudogap, strange metal, superconducting, antiferromagnetic insulating, and Fermi-liquid regimes. The superconducting phase is…

The symmetry properties and the general overview of the superconductivity theory in the itinerant ferromagnets and in materials without space parity are presented. The basic notions of unconventional superconductivity are introduced in…

超导电性 · 物理学 2009-11-10 V. P. Mineev

We study superconducting pairing in the doped Kitaev-Heisenberg model by taking into account the recently proposed symmetric off-diagonal exchange $\Gamma$. By performing a mean-field analysis, we classify all possible superconducting…

超导电性 · 物理学 2018-01-17 Johann Schmidt , Daniel D. Scherer , Annica M. Black-Schaffer

We propose a new type of non-uniform condensate state in the presence of time-reversal symmetry. The underlying platform of this state is a corrugated honeycomb lattice which exhibits an inhomogeneous pseudo magnetic field. Using the…

超导电性 · 物理学 2016-05-30 Mir Vahid Hosseini

We classify line nodes in superconductors with strong spin-orbit interactions and time-reversal symmetry, where the latter may include non-primitive translations in the magnetic Brillouin zone to account for coexistence with…

超导电性 · 物理学 2017-05-24 T. Micklitz , M. R. Norman

We study a model of a two-dimensional repulsive Fermi gas with Rashba spin-orbit coupling $\alpha_R$, and investigate the superconducting instability using renormalization group approach. We find that in general superconductivity is…

超导电性 · 物理学 2011-11-07 Oskar Vafek , Luyang Wang

The search for symmetry-protected 2D Dirac semimetals analogous to graphene is important both for fundamental and practical interest. The 2D Dirac cones are protected by crystalline symmetries and magnetic ordering may destroy their…

介观与纳米尺度物理 · 物理学 2017-03-23 Jing Wang

The transition metal dichalcogenide 4H$_{b}$-TaS$_{2}$ exhibits characteristics of topological edge modes and two-component superconductivity with time-reversal symmetry breaking (TRSB). The nature of the superconducting order parameter is…

Symmetry offers a useful approach to unfold the intertwined degrees of freedom. Thus it paves the way to resolve coexisting quantum orders into distinct symmetry sectors. Motivated by the recent observation of superconductivity in…

In non-centrosymmetric superconductors the pair potential has both even-parity singlet and odd-parity triplet components. If time-reversal symmetry is broken, the superconducting phase of these components is not the same, for example in…

超导电性 · 物理学 2023-09-15 Tim Kokkeler , Alexander Golubov , Sebastián Bergeret , Yukio Tanaka

We have studied the electronic properties of ScS, a transition-metal monochalcogenide with rocksalt crystal structure, using magnetization, specific heat, transport, and muon spin rotation/relaxation ($\mu$SR) measurements. All measurements…

超导电性 · 物理学 2022-08-17 Arushi , R. K. Kushwaha , D. Singh , A. D. Hillier , M. S. Scheurer , R. P. Singh

We study the system of double Rashba wires brought into the proximity to an $s$-wave superconductor. The time reversal invariant topological superconductivity is realized if the interwire pairing corresponding to crossed Andreev reflection…

超导电性 · 物理学 2023-12-14 Hiromi Ebisu , Bo Lu , Jelena Klinovaja , Yukio Tanaka

Conventional superconductors are strong diamagnets that through the Meissner effect expel magnetic fields. It would therefore be surprising if a superconducting ground state would support spontaneous magnetics fields. Such time-reversal…

超导电性 · 物理学 2015-09-02 Mikael Håkansson , Tomas Löfwander , Mikael Fogelström

We study possible superconducting states in transition metal dichalcogenide (TMD) monolayers, assuming an on-site pairing potential that includes both intra- and inter-orbital terms. We find that if the mirror symmetry with respect to the…

超导电性 · 物理学 2021-09-24 Gilad Margalit , Erez Berg , Yuval Oreg

A new experiment is proposed to probe the time-reversal symmetry of a superconductor. It is shown that a time-reversal symmetry breaking superconductor can be identified by the observation of a fractional flux in connection with a Josephson…

凝聚态物理 · 物理学 2009-10-22 Manfred Sigrist , Yong Baek Kim

Superconductivity, an emergence of a macroscopic quantum state, gives rise to unique electromagnetic responses leading to perfect shielding of magnetic field and zero electrical resistance. In this paper, we propose that superconductors…

超导电性 · 物理学 2022-02-09 Hikaru Watanabe , Akito Daido , Youichi Yanase

Time-reversal symmetry breaking superconductivity is a quintessential unconventional quantum state. In Josephson junctions, time-reversal symmetry breaking manifests itself in the supercurrent interference pattern as the invariance of the…

The article presents a method to detect time-reversal symmetry breaking in non-centrosymmetric superconductors using only transport measurements. Specifically, if time-reversal symmetry is broken via a phase difference between singlet and…

超导电性 · 物理学 2023-11-28 Tim Kokkeler , Yukio Tanaka , Alexander Golubov

Recently it has been proposed that a unitary topological mirror symmetry can stabilize multiple zero energy Majorana fermion modes in one dimensional (1D) time reversal (TR) invariant topological superconductors. Here we establish an exact…

介观与纳米尺度物理 · 物理学 2024-03-12 Eugene Dumitrescu , Gargee Sharma , Jay D. Sau , Sumanta Tewari

We consider a Rashba spin-orbit coupled nanowire with anisotropic spin-singlet superconducting pairing and time-reversal-invariant symmetry. We explore the evolution of the topological superconducting phases of this system due to geometric…

超导电性 · 物理学 2020-03-11 Gianluca Francica , Mario Cuoco , Paola Gentile