Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/118290
Title: Electronic properties and topological phases in graphene-based van der waals heterostructures
Authors: ZHANG MEINI
Keywords: 2D material, insulator properties, heterostructure, van der Waals
Issue Date: 14-Aug-2014
Citation: ZHANG MEINI (2014-08-14). Electronic properties and topological phases in graphene-based van der waals heterostructures. ScholarBank@NUS Repository.
Abstract: Using first-principles calculations, we study electronic and topological properties in heterostructures consisting of graphene and several other 2D materials (BiTeI/graphene, Bi2Se3/graphene, graphene/graphene (i.e. bilayer graphene) and BN/graphene). We find topological phase transition either by decreasing the interlayer distance or by changing the stacking configuration of the heterostructures. Besides, the Fermi level and the metal-insulator-transition can be tuned by the interlayer distance. Our results provide a new way to control electronic properties of 2D materials and to realize multiple topological phases.
URI: http://scholarbank.nus.edu.sg/handle/10635/118290
Appears in Collections:Master's Theses (Open)

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