Strongly enhanced topological quantum phases in dual-surface AlO${}_x$-encapsulated MnBi${}_2$Te${}_4$

Zichen Lian, Yongqian Wang, Yongchao Wang +4

The topological quantum phases in antiferromagnetic topological insulator MnBi${}_2$Te${}_4$ hold promise for next-generation spintronics, but their experimental realization has been c…