首页|Hinge Majorana flat band in type-Ⅱ Dirac semimetals

Hinge Majorana flat band in type-Ⅱ Dirac semimetals

扫码查看
原文链接
  • 万方数据
Hinge Majorana flat band in type-Ⅱ Dirac semimetals
Type-Ⅱ Dirac semimetals exhibit a unique Fermi surface topology,which allows them to host novel topological superconductivity(TSC).We reveal a novel inter-orbital superconducting state,corresponding to the B1u and B2u pairings under the D4h point group.Intriguingly,we find that both first-and second-order TSC coexist in this novel state.It is induced by a dominant inter-orbital attraction and possesses surface helical Majorana cones and hinge Majorana flat bands,spanning the entire z-directed hinge Bril-louin zone.Further investigation uncovers that these higher-order hinge modes are robust against the C4z symmetry-breaking perturbation.

topological superconductivityMajorana fermionshigher-order topologytype-Ⅱ Dirac semimetals

Yue Xie、Xianxin Wu、Zhong Fang、Zhijun Wang

展开 >

Beijing National Laboratory for Condensed Matter Physics,and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China

University of Chinese Academy of Sciences,Beijing 100049,China

CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China

topological superconductivity Majorana fermions higher-order topology type-Ⅱ Dirac semimetals

2024

10.1007/s11433-024-2483-8

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
年,卷(期)：2024.67(12)