Doping-tunable Fermi surface with persistent topological Hall effect in axion candidate EuIn${}_2$As${}_2$

Jian Yan, Jianguo Si, Zhongzhu Jiang +6

Rare-earth Zintl compound EuIn${}_2$As${}_2$ has been theoretically recognized as a candidate for realizing an intrinsic antiferromagnetic (AFM) bulk axion insulator and a higher-order…