MnBi2Te4 – a good platform for topological quantum physics study
MnBi2Te4 – a good platform for topological quantum physics study
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MnBi2Te4 — 拓扑量子物理研究的良好平台
DOI:
10.1007/s44214-022-00018-6
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发表时间:
2022-11
期刊:
影响因子:
--
通讯作者:
Jin-Feng Jia
中科院分区:
文献类型:
--
作者:
Weilun Tan;Jing Liu;Hui Li;D;an Guan;Jin-Feng Jia
AbstractMagnetic topological insulator MnBi2Te4 is an intrinsic van der Waals layer structure compound. The interplay between magnetism and topology makes MnBi2Te4 a good platform to investigate controllable topological phase transition and emerging physical states such as quantum anomalous Hall state and Weyl semimetal phase. Crystal characterization showed a rhombohedral unit cell composing of Te-Bi-Te-Mn-Te-Bi-Te septuple layer (SL) coupled antiferromagnetically. Systematically investigation of surface states with angle-resolved photoemission spectroscopy and of bulk states with transport measurement showed detailed electronic structure of MnBi2Te4 crystal. Rich topological phases were observed in MnBi2Te4. Temperature, doping and external magnetic field could affect the different topological phases and induce phase transitions in certain conditions. Quantum anomalous Hall effect (QAHE) was realized at as high as 6.5K in 5-SLs MnBi2Te4 flake. Furthermore, the negative to positive magnetoresistance transition and the thickness dependent QAHE Chern number of MnBi2Te4 provide strong evidences for the Weyl semimetal states in this material. Based on experiments done from 2019 to 2022, our review should shed light on future research opportunities on MnBi2Te4 compound.
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影响因子:
8.6
作者:
A. Tan;V. Labracherie;N. Kunchur;A. Wolter;Joaquin Cornejo;J. Dufouleur;B. Büchner;A. Isaeva
通讯作者:
A. Tan;V. Labracherie;N. Kunchur;A. Wolter;Joaquin Cornejo;J. Dufouleur;B. Büchner;A. Isaeva
DOI:
--
发表时间:
2020-03
期刊:
Bulletin of the American Physical Society
影响因子:
--
作者:
Jiaheng Li;W. Duan;Yong Xu
通讯作者:
Jiaheng Li;W. Duan;Yong Xu
影响因子:
3.7
作者:
Dyck, JS;Drasar, C;Uher, C
通讯作者:
Uher, C
影响因子:
56.9
作者:
Xu, Su-Yang;Belopolski, Ilya;Hasan, M. Zahid
通讯作者:
Hasan, M. Zahid
影响因子:
3.5
作者:
Cuiying 翠颖 Pei 裴;Yunyouyou 云悠悠 Xia 夏;Jiazhen 家臻 Wu 邬;Y. Zhao 赵;Lingling 玲玲 Gao 高;Tianping 天平 Ying 应-
通讯作者:
Cuiying 翠颖 Pei 裴;Yunyouyou 云悠悠 Xia 夏;Jiazhen 家臻 Wu 邬;Y. Zhao 赵;Lingling 玲玲 Gao 高;Tianping 天平 Ying 应-