Superconductivity in Weyl semimetals with time reversal symmetry

被引:0
作者
Xuesong, Bai [1 ]
Liming, W. [1 ]
Zhou, Tao [1 ,2 ]
机构
[1] South China Normal Univ, Guangdong Basic Res Ctr Excellence Struct & Fundam, Sch Phys, Guangdong Prov Key Lab Quantum Engn & Quantum Mat, Guangzhou 510006, Peoples R China
[2] South China Normal Univ, Frontier Res Inst Phys, Guangdong Hong Kong Joint Lab Quantum Matter, Guangzhou 510006, Peoples R China
来源
NEW JOURNAL OF PHYSICS | 2025年 / 27卷 / 01期
关键词
superconductivity; Weyl semimetal; time-reversal symmetry; surface state; FERMION SEMIMETAL; TRANSITION; ARCS;
D O I
10.1088/1367-2630/ada574
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This theoretical study delves into the superconducting traits of Weyl semimetals that possess time reversal symmetry, utilizing the Bogoliubov-de Gennes equations. Our meticulous self-consistent calculations have unveiled a dual superconducting gap at the surface. We have also contrasted these findings with the superconducting characteristics of models that exhibit broken time-reversal symmetry. Our analysis indicates that Weyl semimetals with unimpaired time-reversal symmetry not only sustain a complete energy gap but also display modified Fermi arc surface states, which are notably distinct from those in models with compromised time-reversal symmetry. This work bridges the gap between theoretical expectations and experimental observations, advancing our understanding of the superconducting properties of Weyl semimetals.
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页数:7
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