Electronic structure and coexisting topological states in ferromagnetic and antiferromagnetic phases of MnBi_(2)Te_(4)quantum wires  

作　　者：Jian Li Zhu-Cai Yin Qing-Xu Li Jia-Ji Zhu 李健;尹柱财;李清旭;朱家骥

机构地区：[1]School of Science,Chongqing University of Posts and Telecommunications,Chongqing 400065,China [2]Institute for Advanced Sciences,Chongqing University of Posts and Telecommunications,Chongqing 400065,China [3]Southwest Center for Theoretical Physics,Chongqing University,Chongqing 401331,China

出　　处：《Chinese Physics B》2025年第3期527-532,共6页中国物理B(英文版)

基　　金：Project sponsored by the Natural Science Foundation of Chongqing,China(Grant No.CSTB2024NSCQMSX0736);the Special Project of Chongqing Technology Innovation and Application Development(Major Project)(Grant No.CSTB2024TIAD-STX0035);the Research Foundation of Institute for Advanced Sciences of CQUPT(Grant No.E011A2022328)。

摘　　要：We theoretically investigate the electronic structure of cylindrical magnetic topological insulator quantum wires in MnBi_(2)Te_(4).Our study reveals the emergence of topological surface states in the ferromagnetic phase,characterized by spin-polarized subbands resulting from intrinsic magnetization.In the antiferromagnetic phase,we identify the coexistence of three distinct types of topological states,encompassing both surface states and central states.

关 键 词：quantum wires MnBi_(2)Te_(4) magnetic topological insulator electronic structure 

分 类 号：TG1[金属学及工艺—金属学]