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2. ChemInform Abstract: Electronic Structures and Theoretical Modelling of Two-Dimensional Group-VIB Transition Metal Dichalcogenides

Author

Xiaodong Xu, Di Xiao, Gui-Bin Liu, Wang Yao, and Yugui Yao

Subjects
Coupling (physics), Semiconductor, Transition metal, Condensed matter physics, Chemistry, Group (periodic table), business.industry, Coulomb, Theoretical models, Direct and indirect band gaps, General Medicine, business
Abstract

Atomically thin group-VIB transition metal dichalcogenides (TMDs) have recently emerged as a new class of two-dimensional (2D) semiconductors with extraordinary properties including the direct band gap in the visible frequency range, the pronounced spin–orbit coupling, the ultra-strong Coulomb interaction, and the rich physics associated with the valley degree of freedom. These 2D TMDs exhibit great potential for device applications and have attracted vast interest for the exploration of new physics. 2D TMDs have complex electronic structures which underlie their physical properties. Here we review the bulk electronic structures of these new 2D materials as well as the theoretical models developed at different levels, along which we sort out the understanding of the origins of a variety of properties observed or predicted.

Published
2015

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