4 papers
Suppression of Extrinsic Anomalous Hall Conductivity in Disordered Parity Anomalous Semimetal
Shi-Hao Bi, Bo Fu, Shun-Qing Shen
We present an analytical investigation of the extrinsic contributions to the anomalous Hall conductivity in the context of the half-quantized Hall effect observed in disordered par…
Nearly semi-elliptic relation between the minimal conductivity and Hall conductivity in unpaired Dirac fermions
Bo Fu, Kai-Zhi Bai, Shi-Hao Bi +1
Electric conductivities may reveal the topological and magnetic properties of band structures in solids, especially for two-dimensional unpaired Dirac fermions. In this work, we ev…
Disordered Parity Anomalous Semimetal
Shi-Hao Bi, Bo Fu, Shun-Qing Shen
The parity anomalous semimetal is a topological state of matter characterized by its semi-metallic nature and a quantum Hall conductance of one-half ( is the elementar…
Half-Quantized Hall Metal and Marginal Metal in Disordered Magnetic Topological Insulators
Shi-Hao Bi, Bo Fu, Shun-Qing Shen
A semimagnetic topological insulator -- a heterostructure combining a topological insulator with a ferromagnet -- exhibits a half-quantized Hall effect, characterized by a quantize…