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Intrinsic magnetic topological insulator phases in the Sb doped MnBi2Te4 bulks and thin flakes.
Chen, Bo; Fei, Fucong; Zhang, Dongqin; Zhang, Bo; Liu, Wanling; Zhang, Shuai; Wang, Pengdong; Wei, Boyuan; Zhang, Yong; Zuo, Zewen; Guo, Jingwen; Liu, Qianqian; Wang, Zilu; Wu, Xuchuan; Zong, Junyu; Xie, Xuedong; Chen, Wang; Sun, Zhe; Wang, Shancai; Zhang, Yi; Zhang, Minhao; Wang, Xuefeng; Song, Fengqi; Zhang, Haijun; Shen, Dawei; Wang, Baigeng.
Afiliação
  • Chen B; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Fei F; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Zhang D; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China. feifucong@nju.edu.cn.
  • Zhang B; Atomic Manufacture Institute (AMI), 211805, Nanjing, China. feifucong@nju.edu.cn.
  • Liu W; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Zhang S; National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, China.
  • Wang P; Division of Photon Science and Condensed Matter Physics, School of Physical Science and Technology, ShanghaiTech University, 200031, Shanghai, China.
  • Wei B; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Sciences, 200050, Shanghai, China.
  • Zhang Y; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049, Beijing, China.
  • Zuo Z; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Guo J; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Liu Q; National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, China.
  • Wang Z; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Wu X; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Zong J; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Xie X; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Chen W; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Sun Z; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Wang S; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Zhang Y; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Zhang M; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Wang X; Atomic Manufacture Institute (AMI), 211805, Nanjing, China.
  • Song F; Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, 100872, Beijing, China.
  • Zhang H; Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials & Micro-nano Devices, Renmin University of China, 100872, Beijing, China.
  • Shen D; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
  • Wang B; National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and College of Physics, Nanjing University, 210093, Nanjing, China.
Nat Commun ; 10(1): 4469, 2019 10 02.
Article em En | MEDLINE | ID: mdl-31578337
ABSTRACT
Magnetic topological insulators (MTIs) offer a combination of topologically nontrivial characteristics and magnetic order and show promise in terms of potentially interesting physical phenomena such as the quantum anomalous Hall (QAH) effect and topological axion insulating states. However, the understanding of their properties and potential applications have been limited due to a lack of suitable candidates for MTIs. Here, we grow two-dimensional single crystals of Mn(SbxBi(1-x))2Te4 bulk and exfoliate them into thin flakes in order to search for intrinsic MTIs. We perform angle-resolved photoemission spectroscopy, low-temperature transport measurements, and first-principles calculations to investigate the band structure, transport properties, and magnetism of this family of materials, as well as the evolution of their topological properties. We find that there exists an optimized MTI zone in the Mn(SbxBi(1-x))2Te4 phase diagram, which could possibly host a high-temperature QAH phase, offering a promising avenue for new device applications.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: China
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: China