Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems
文献类型：期刊论文
| 作者 | Wang, ZQ; Jiang, K2,3,4; Dai, X3,4; Zhou, S2
|
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 120期号:15页码:157205 |
| ISSN号 | 0031-9007 |
| 关键词 | CORRELATED FERMI SYSTEMS SPIN REALIZATION MODEL APPROXIMATIONS |
| DOI | 10.1103/PhysRevLett.120.157205 |
| 英文摘要 | We investigate a new class of topological antiferromagnetic (AF) Chern insulators driven by electronic interactions in two-dimensional systems without inversion symmetry. Despite the absence of a net magnetization, AF Chern insulators (AFCI) possess a nonzero Chern number C and exhibit the quantum anomalous Hall effect (QAHE). Their existence is guaranteed by the bifurcation of the boundary line of Weyl points between a quantum spin Hall insulator and a topologically trivial phase with the emergence of AF long-range order. As a concrete example, we study the phase structure of the honeycomb lattice Kane-Mete model as a function of the inversion-breaking ionic potential and the Hubbard interaction. We find an easy z axis C = 1 AFCI phase and a spin-flop transition to a topologically trivial xy plane collinear antiferromagnet. We propose experimental realizations of the AFCI and QAHE in correlated electron materials and cold atom systems. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22923]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 2.Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, ZQ,Jiang, K,Dai, X,et al. Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems[J]. PHYSICAL REVIEW LETTERS,2018,120(15):157205. |
| APA | Wang, ZQ,Jiang, K,Dai, X,&Zhou, S.(2018).Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems.PHYSICAL REVIEW LETTERS,120(15),157205. |
| MLA | Wang, ZQ,et al."Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems".PHYSICAL REVIEW LETTERS 120.15(2018):157205. |
入库方式： OAI收割
来源：理论物理研究所
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