Color map showing the resistance of nine-septuple-layer MnBi₂Te₄ as a function of magnetic field and filling factor.

From the article:

Exchange-Driven Chern States in High-Mobility Intrinsic Magnetic Topological Insulators
Su Kong Chong, Chao Lei, Yang Cheng, Seng Huat Lee, Zhiqiang Mao, Allan H. MacDonald, and Kang L. Wang
Phys. Rev. Lett. 132, 146601 (2024)

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