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Dresden 2014 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 41: Transport: Graphene (organized by TT)

HL 41.1: Topical Talk

Dienstag, 1. April 2014, 09:30–10:00, WIL C107

A First-Principles Perspective on Two-Dimensional Transition-Metal Dichalcogenides — •Udo Schwingenschlögl — KAUST, PSE Division, Thuwal 23955-6900, Kingdom of Saudi Arabia

Layered transition-metal dichalcogenides recently are attracting great attention, because of the possibility to achieve two-dimensional (2D) materials, similar to the exfoliation of graphene from graphite. Using first-principles calculations, we study prototypical monolayer MoS2 to obtain insight into the influence of defects and substitutional doping, for a wide range of transition-metal dopants. We also address polar transition-metal dichalcogenide monolayers with respect to their structural stability and the effects of the spin-orbit coupling. Heterojunctions of MoS2 with unsaturated and saturated MXenes are studied; such hyrid systems are interesting for application in all-2D devices.
Phys. Rev. B 87, 100401(R) (2013)
EPL 102, 57001 (2013)
Phys. Rev. B 87, 245307 (2013)

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