Knowledge Management System of Institute of Theoretical Physics, CAS
Jiang, K1,2,3; Zhou, S1 ; Dai, X2,3; Wang, ZQ
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| Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems | |
| Source Publication | PHYSICAL REVIEW LETTERS
 |
| Language | 英语 |
| Keyword | CORRELATED FERMI SYSTEMS SPIN REALIZATION MODEL APPROXIMATIONS |
| Abstract | 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. |
| 2018 | |
| ISSN | 0031-9007 |
| Volume | 120Issue:15Pages:157205 |
| Subject Area | Physics |
| MOST Discipline Catalogue | Physics, Multidisciplinary |
| DOI | 10.1103/PhysRevLett.120.157205 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/22923 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA 2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang, K,Zhou, S,Dai, X,et al. Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems[J]. PHYSICAL REVIEW LETTERS,2018,120(15):157205. |
| APA | Jiang, K,Zhou, S,Dai, X,&Wang, ZQ.(2018).Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems.PHYSICAL REVIEW LETTERS,120(15),157205. |
| MLA | Jiang, K,et al."Antiferromagnetic Chern Insulators in Noncentrosymmetric Systems".PHYSICAL REVIEW LETTERS 120.15(2018):157205. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Antiferromagnetic Ch（278KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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