Type-II Ising Superconductivity in Two-Dimensional Materials with Spin-Orbit Coupling

Centrosymmetric materials with spin-degenerate bands are generally considered to be trivial for spintronics and related physics. In two-dimensional (2D) materials with multiple degenerate orbitals, we find that the spin-orbit coupling can induce spin-orbital locking, generate out-of-plane Zeeman-lik...

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Bibliographic Details
Published in:Physical review letters 2019-09, Vol.123 (12), p.1-126402, Article 126402
Main Authors: Wang, Chong, Lian, Biao, Guo, Xiaomi, Mao, Jiahao, Zhang, Zetao, Zhang, Ding, Gu, Bing-Lin, Xu, Yong, Duan, Wenhui
Format: Article
Language:English
Subjects:
Electron states
First principles
Ising model
Locking
Materials selection
Orbitals
Spin-orbit interactions
Spintronics
Superconductivity
Two dimensional materials
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Summary:Centrosymmetric materials with spin-degenerate bands are generally considered to be trivial for spintronics and related physics. In two-dimensional (2D) materials with multiple degenerate orbitals, we find that the spin-orbit coupling can induce spin-orbital locking, generate out-of-plane Zeeman-like fields displaying opposite signs for opposing orbitals, and create novel electronic states insensitive to the in-plane magnetic field, which thus enables a new type of Ising superconductivity applicable to centrosymmetric materials. Many candidate materials are identified by high-throughput first-principles calculations. Our work enriches the physics and materials of Ising superconductivity, opening new opportunities for future research of 2D materials.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.123.126402