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Ab initio investigation of the electronic properties of graphene on InAs(111)A
Yelgel C., Srivastava P. G., Miwa H. R.,
Published in
Volume: 24
Issue: 48
The equilibrium geometry and electronic structure of graphene on the most stable In-vacancy InAs(111)A surface has been investigated using the density functional and pseudopotential theories. The equilibrium distance between graphene and InAs(111) is found to be 3.05 with adsorption energy approximately 38meV/C atom. According to our electronic band calculation, there is a re-distribution of the charge density around the graphene sheet, which leads to the development of a dipole moment along the surface normal. Scanning tunnelling microscopy image simulations suggest that the InAs(111) substrate is visible through the graphene layer. {\textcopyright} 2012 IOP Publishing Ltd.
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