Xi Chen

TL;DR: In this paper, the experimental realization of thin films of an intrinsic magnetic topological insulator, MnBi 2 Te 4, by alternate growth of a Bi 2 Te 3 quintuple layer and a MnTe bilayer with molecular beam epitaxy was reported.

TL;DR: In this article, the electronic structure and superconducting gap of a single-layer FeSe superconductor were investigated, and it was shown that such a simple electronic structure is compatible with high-T(c) superconductivity in iron-based superconductors.

TL;DR: In this article, low-temperature scanning tunneling microscopy and spectroscopy are employed to investigate twin boundaries in stoichiometric FeSe films grown by molecular beam epitaxy, which are unambiguously identified by imaging the 90° change in the orientation of local electronic dimers from Fe site impurities on either side.

TL;DR: In this paper, the authors consider a junction between surface p and surface n on an ideal topological insulator in which carrier type and density in two adjacent regions are locally controlled by composition graded doping or electrical gating.

TL;DR: In this article, the experimental realization of high-quality thin films of an intrinsic magnetic topological insulator (TI) by alternate growth of a Bi$_2$Te$_3$ quintuple-layer and a MnTe bilayer with molecular beam epitaxy was reported.