Low-lying electronic states with giant linear dichroic ratio observed in PdSe2

Physical Review B American Physical Society (APS) 106:12 (2022) l121110

Authors:

Chenyi Gu, Xiaowei Liu, Cheng Chen, Aiji Liang, Wei Guo, Xinrui Yang, Jian Zhou, Chris Jozwiak, Aaron Bostwick, Zhongkai Liu, Shi-Jun Liang, Yulin Chen, Feng Miao, Eli Rotenberg, Yuefeng Nie

Electronic structure of antiferromagnetic Dirac semimetal candidate GdIn3

Physical Review Materials American Physical Society (APS) 6:8 (2022) 084203

Authors:

ZX Yin, X Du, S Zhang, C Chen, D Pei, JS Zhou, X Gu, RZ Xu, QQ Zhang, WX Zhao, YD Li, YF Xu, A Bernevig, ZK Liu, EK Liu, YL Chen, LX Yang

Evolution of the Electronic Structure of Ultrathin MnBi2Te4 Films.

Nano letters 22:15 (2022) 6320-6327

Authors:

Runzhe Xu, Yunhe Bai, Jingsong Zhou, Jiaheng Li, Xu Gu, Na Qin, Zhongxu Yin, Xian Du, Qinqin Zhang, Wenxuan Zhao, Yidian Li, Yang Wu, Cui Ding, Lili Wang, Aiji Liang, Zhongkai Liu, Yong Xu, Xiao Feng, Ke He, Yulin Chen, Lexian Yang

Abstract:

Ultrathin films of intrinsic magnetic topological insulator MnBi2Te4 exhibit fascinating quantum properties such as the quantum anomalous Hall effect and the axion insulator state. In this work, we systematically investigate the evolution of the electronic structure of MnBi2Te4 thin films. With increasing film thickness, the electronic structure changes from an insulator type with a large energy gap to one with in-gap topological surface states, which is, however, still in drastic contrast to the bulk material. By surface doping of alkali-metal atoms, a Rashba split band gradually emerges and hybridizes with topological surface states, which not only reconciles the puzzling difference between the electronic structures of the bulk and thin-film MnBi2Te4 but also provides an interesting platform to establish Rashba ferromagnet that is attractive for (quantum) anomalous Hall effect. Our results provide important insights into the understanding and engineering of the intriguing quantum properties of MnBi2Te4 thin films.

Wafer-scale epitaxial growth of the thickness-controllable van der Waals ferromagnet CrTe2 for reliable magnetic memory applications

(2022)

Authors:

Xufeng Kou, Xinqi Liu, Yunyouyou Xia, Lei Gao, Puyang Huang, Liyang Liao, Baoshan Cui, Dirk Backes, Gerrit van der Laan, Thorsten Hesjedal, Yuchen Ji, Peng Chen, Fan Wu, Meixiao Wang, Junwei Zhang, Guoqiang Yu, Cheng Song, Yulin Chen, Zhongkai Liu, Yumeng Yang, Yong Peng, Gang Li, Qi Yao

Persistent exchange splitting in the chiral helimagnet Cr1/3NbS2

Physical Review B American Physical Society (APS) 106:3 (2022) 035129

Authors:

Na Qin, Cheng Chen, Shiqiao Du, Xian Du, Xin Zhang, Zhongxu Yin, Jingsong Zhou, Runzhe Xu, Xu Gu, Qinqin Zhang, Wenxuan Zhao, Yidian Li, Sung-Kwan Mo, Zhongkai Liu, Shilei Zhang, Yanfeng Guo, Peizhe Tang, Yulin Chen, Lexian Yang