Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session N02: Magnetic Topological Insulators
11:30 AM–2:30 PM,
Wednesday, March 6, 2024
Room: L100B
Sponsoring
Units:
DMP GMAG
Chair: Benjamin Ueland, Ames National Laboratory
Abstract: N02.00002 : Spin-resolved band structure in the antiferromagnetic topological insulators MnBi2Te4 and MnBi4Te7*
12:06 PM–12:18 PM
Presenter:
Xue Han
(Stanford University)
Authors:
Xue Han
(Stanford University)
Jason Qu
(Stanford Univ)
Hengxin Tan
(Weizmann Institute of Science)
Binghai Yan
(Weizmann Institute of Science)
Zicheng Tao
(School of Physical Science and Technology, ShanghaiTech University)
Yanfeng Guo
(School of Physical Science and Technology, ShanghaiTech University)
Zhixun Shen
(Stanford University)
Jonathan A Sobota
(Stanford University)
In this talk, we will present our spin-resolved ARPES spectra on MnBi2Te4 (n=0) and MnBi4Te7 (n=1), showing both in-plane and out-of-plane spin polarization of the surface states. We analyze the spin-orbital texture and compare it to the behavior of typical topological insulators such as Bi2Te3 as described by effective theory and ab initio calculations [1]. We discuss the implications of our analysis and how it aids in the understanding of the electronic structures.
**This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Division of Materials Sciences and Engineering.
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