3 papers
cond-mat.mes-hall2019
Mott phase in a van der Waals transition-metal halide at single layer limit
Lang Peng, Jianzhou Zhao, Gui-Yuan Hua +9
Two-dimensional materials offer opportunities for unravelling unprecedented ordered states at single layer limit. Among such ordered states, Mott phase is rarely explored. Here, we…
cond-mat.mtrl-sci2018
Visualizing topological edge states of single and double bilayer Bi supported on multibilayer Bi(111) films
Lang Peng, Jing-Jing Xian, Peizhe Tang +4
Freestanding single-bilayer Bi(111) is a two-dimensional topological insulator with edge states propagating along its perimeter. Given the interlayer coupling experimentally, the t…
cond-mat.mtrl-sci2018
Dimensional Crossover and Topological Phase Transition in Dirac Semimetal Na3Bi Films
Huinan Xia, Yang Li, Min Cai +7
Three-dimensional (3D) topological Dirac semimetal, when thinned down to 2D few layers, is expected to possess gapped Dirac nodes via quantum confinement effect and concomitantly d…