3 papers
cond-mat.mtrl-sci2023
Design of Antiferromagnetic Second-order Band Topology with Rotation Topological Invariants in Two Dimensions
Fangyang Zhan, Zheng Qin, Dong-Hui Xu +3
The existence of fractionally quantized topological corner states serves as a key indicator for two-dimensional second-order topological insulators (SOTIs), yet has not been experi…
cond-mat.mes-hall2023
The One-dimensional Chiral Anomaly and its Disorder Response
Zheng Qin, Dong-Hui Xu, Zhen Ning +1
The condensed-matter realization of chiral anomaly has attracted tremendous interest in exploring unexpected phenomena of quantum field theory. Here, we show that one-dimensional (…
cond-mat.mes-hall2023
Robustness of Half-Integer Quantized Hall Conductivity against Disorder in an Anisotropic Dirac Semimetal with Parity Anomaly
Zhen Ning, Xianyong Ding, Dong-Hui Xu +1
Two-dimensional Dirac semimetals with a single massless Dirac cone exhibit the parity anomaly. Usually, such a kind of anomalous topological semimetallic phase in real materials is…