Identifying axion insulator by quantized magnetoelectric effect in antiferromagnetic MnBi 2 Te 4 tunnel junction

作者：Yu-Hang Li, Ran Cheng · 发表于：Physical Review Research · 年份：2022 · DOI：10.1103/physrevresearch.4.l022067 · 被引用次数：16 · 研究领域：Topological Materials and Phenomena、Quantum many-body systems、Cold Atom Physics and Bose-Einstein Condensates

The authors propose a ${\mathrm{MnBi}}_{2}\phantom{\rule{0}{0ex}}{\mathrm{Te}}_{4}$ tunnel junction to unambiguously identify an axion insulator through the quantized topological magnetoelectric effect.