Colloquium
Department of Physics, NCU
Electronic Structures of 2D Materials
Prof. Meng-Kai Lin (林孟凱)
Dept. of Physics, NCU
Date 2021.11.02 (Tue)
Place S4-625
Time 14:00-16:00
Abstract: Research on single layers and few layers of materials has demonstrated abundant cases of novel properties, including lattice and charge distortions, magnetic ordering, topological electronic transitions, superconductivity, etc., that are drastically different from the corresponding bulk cases. Transition metal dichalcogenides (TMDCs), which form a huge group of van der Waals layered systems, are excellent parent materials for the study in reduced dimension. In this talk, I will briefly introduce the principle of the major tool, angle-resolved photoemission spectroscopy (ARPES), used in my research and present my recent works on few-layer TMDCs and their heterostructures, specifically, for substrate mediated charge instability in TiTe2 single layer, and coherent coupling in TiTe2/TiSe2 Moiré bilayer.