Sept 2, 2022

In collaboration with Prof. Vanderbilt's group and Dr. Yan from ORNL, graduate student Wenbo Ge in the research group of Professor Weida Wu directly visualized the long-sought surface spin-flip transition in natural superlattice antiferromagnet MnBi4Te7, one of the antiferromagnetic topological insulators.

This work is published in the September issue of Physical Review Letters, and was selected for the issue cover image:


The paper is also highlighted by “Editor’s Suggestion”(

 Wenbo Ge