6 papers
Mott insulator tuning via structural distortion in monolayer 1T-NbSe2
Zhen-Yu Liu, Shuang Qiao, Qiao-Yin Tang +8
Mott state in 1T-TaS2 is predicted to host quantum spin liquids (QSL). However, its insulating mechanism is controversial due to complications from interlayer coupling. Here, we st…
Realization of AlSb in the double layer honeycomb structure: a robust new class of two-dimensional material
Le Qin, Zhi-Hao Zhang, Zeyu Jiang +10
Exploring new two-dimensional (2D) van der Waals (vdW) systems is at the forefront of materials physics. Here, through molecular beam epitaxy on graphene-covered SiC(0001), we repo…
Possible phason-polaron effect on purely one dimensional charge order of Mo6Se6 nanowires
Xing Yang, Jing-Jing Xian, Gang Li +6
In one-dimensional (1D) metallic systems, the diverging electron susceptibility and electron-phonon coupling collaboratively drive the electrons into a charge density wave (CDW) st…
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…
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…
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…