TY - JOUR
T1 - Non-collinear orbital-induced planar quantum anomalous Hall effect
AU - Guo, Xu
AU - Liu, Zhao
AU - Liu, Bing
AU - Li, Qunxiang
AU - Wang, Zhengfei
N1 - Funding Information:
This work was supported by the NSFC (11774325, 21603210 11874337, 21873088, and 11634011), the National Key Research and Development Program of China (2017YFA0204904 and 2016YFA0200600), and the Fundamental Research Funds for the Central Universities. We also thank the Supercomputing Center at USTC for providing the computing resources.
Funding Information:
This work was supported by the NSFC (11774325, 21603210, 11874337, 21873088, and 11634011), the National Key Research and Development Program of China (2017YFA0204904 and 2016YFA0200600), and the Fundamental Research Funds for the Central Universities. We also thank the Supercomputing Center at USTC for providing the computing resources.
Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/10/14
Y1 - 2020/10/14
N2 - Based on the 2D star lattice with noncollinear orbital, we present an intriguing six-band tight-binding model for planar quantum anomalous Hall effect (PQAHE) with in-plane magnetization. Depending on the orientation of the noncollinear orbital, the characterized Dirac-, Kagome-, and Four-band are all realizable. Moreover, including the intrinsic spin-orbital coupling, a topological phase diagram versus angle of both in-plane magnetization and noncollinear orbital is mapped out, showing a tunable PQAHE with Chern number of either +1 or -1. Most remarkably, using first-principles calculations, this exact model of PQAHE is identified in an experimentally synthesized 2D metal-organic framework (MOF) of Pr2(C6O4Cl2)3. These notable results not only demonstrate the significance of noncollinear orbital for designing PQAHE but also provide a MOF platform for its realization, greatly enriching the fundamental topological physics and extending the candidate topological materials.
AB - Based on the 2D star lattice with noncollinear orbital, we present an intriguing six-band tight-binding model for planar quantum anomalous Hall effect (PQAHE) with in-plane magnetization. Depending on the orientation of the noncollinear orbital, the characterized Dirac-, Kagome-, and Four-band are all realizable. Moreover, including the intrinsic spin-orbital coupling, a topological phase diagram versus angle of both in-plane magnetization and noncollinear orbital is mapped out, showing a tunable PQAHE with Chern number of either +1 or -1. Most remarkably, using first-principles calculations, this exact model of PQAHE is identified in an experimentally synthesized 2D metal-organic framework (MOF) of Pr2(C6O4Cl2)3. These notable results not only demonstrate the significance of noncollinear orbital for designing PQAHE but also provide a MOF platform for its realization, greatly enriching the fundamental topological physics and extending the candidate topological materials.
KW - metal-organic framework
KW - noncollinear orbital
KW - Planar quantum anomalous Hall
KW - star lattice
UR - http://www.scopus.com/inward/record.url?scp=85092944179&partnerID=8YFLogxK
U2 - 10.1021/acs.nanolett.0c03136
DO - 10.1021/acs.nanolett.0c03136
M3 - Article
C2 - 32852221
AN - SCOPUS:85092944179
SN - 1530-6984
VL - 20
SP - 7606
EP - 7612
JO - Nano Letters
JF - Nano Letters
IS - 10
ER -