Affiliation of Author(s):[1]Univ Elect Sci & Technol China, Sch Phys, Chengdu 611731, Peoples R China;[2]Great Bay Univ, Sch Sci, Dongguan 523000, Peoples R China;[3]Univ Hong Kong, Dept Phys, Pokfulam Rd, Hong Kong, Peoples R China

Journal:Physical Review B

Key Words:Electric insulators - Quantum Hall effect - Topological insulators

Abstract:The pursuit of understanding the parity anomaly in condensed matter systems has led to significant advancements in both theoretical and experimental research in recent years. In this paper, we explore the parity anomaly of massless Dirac fermions in a semimagnetic topological insulator (TI) thin film subjected to a finite magnetic field. Our findings reveal an anomalous half-quantized Hall conductance arising from the occupied electronic states far below the Fermi level, which is directly associated with the parity anomaly. This observation demonstrates a crossover from one-half quantized Hall

All the Authors:Bo Fu

First Author:Huan-Wen Wang

Indexed by:Journal Article

Correspondence Author:Shun-Qing Shen

Document Type:Article

Volume:109

Issue:7

ISSN No.:2469-9950

Translation or Not:no