| Title | Anderson Localization from the Berry-Curvature Interchange in Quantum Anomalous Hall Systems |
| Authors | Qiao, Zhenhua Han, Yulei Zhang, Lei Wang, Ke Deng, Xinzhou Jiang, Hua Yang, Shengyuan A. Wang, Jian Niu, Qian |
| Affiliation | Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, ICQD, Hefei 230026, Anhui, Peoples R China. Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China. Univ Sci & Technol China, CAS Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Anhui, Peoples R China. Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China. Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. Univ Hong Kong, Dept Phys, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China. Univ Hong Kong, Ctr Theoret & Computat Phys, Pokfulam Rd, Hong Kong, Hong Kong, Peoples R China. Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Inst Laser Spect, Taiyuan 030006, Peoples R China. Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China. Soochow Univ, Coll Phys, Suzhou 215006, Jiangsu, Peoples R China. Singapore Univ Technol & Design, Res Lab Quantum Mat, Singapore 487372, Singapore. Peking Univ, ICQM, Beijing 100871, Peoples R China. Peking Univ, Sch Phys, CICQM, Beijing 100871, Peoples R China. Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, ICQD, Hefei 230026, Anhui, Peoples R China. Qiao, ZH (reprint author), Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China. Qiao, ZH (reprint author), Univ Sci & Technol China, CAS Key Lab Strongly Coupled Quantum Matter Phys, Hefei 230026, Anhui, Peoples R China. Qiao, ZH (reprint author), Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China. Qiao, ZH (reprint author), Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. |
| Keywords | FERROMAGNETIC TOPOLOGICAL INSULATOR ELECTRONIC-PROPERTIES GREENS-FUNCTION SCALING THEORY 2 DIMENSIONS MAGNETORESISTANCE REALIZATION DIFFUSION TRANSPORT ABSENCE |
| Issue Date | 2016 |
| Publisher | PHYSICAL REVIEW LETTERS |
| Citation | PHYSICAL REVIEW LETTERS.2016,117(5). |
| Abstract | We theoretically investigate the localization mechanism of the quantum anomalous Hall effect (QAHE) in the presence of spin-flip disorders. We show that the QAHE stays quantized at weak disorders, then enters a Berry-curvature mediated metallic phase at moderate disorders, and finally goes into the Anderson insulating phase at strong disorders. From the phase diagram, we find that at the charge neutrality point although the QAHE is most robust against disorders, the corresponding metallic phase is much easier to be localized into the Anderson insulating phase due to the interchange of Berry curvatures carried, respectively, by the conduction and valence bands. In the end, we provide a phenomenological picture related to the topological charges to better understand the underlying physical origin of the QAHE Anderson localization. |
| URI | http://hdl.handle.net/20.500.11897/491830 |
| ISSN | 0031-9007 |
| DOI | 10.1103/PhysRevLett.117.056802 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 物理学院 |
