%0 Journal Article
%T Correlation between morphology and transport properties of quasi-free-standing monolayer graphene
%A Yuya Murata
%A Torge Mashoff
%A Makoto Takamura
%A Shinichi Tanabe
%A Hiroki Hibino
%A Fabio Beltram
%A Stefan Heun
%J Physics
%D 2014
%I arXiv
%R 10.1063/1.4902988
%X We investigate the morphology of quasi-free-standing monolayer graphene (QFMLG) formed at several temperatures by hydrogen intercalation and discuss its relationship with transport properties. Features corresponding to incomplete hydrogen intercalation at the graphene-substrate interface are observed by scanning tunneling microscopy on QFMLG formed at 600 and 800{\deg}C. They contribute to carrier scattering as charged impurities. Voids in the SiC substrate and wrinkling of graphene appear at 1000{\deg}C, and they decrease the carrier mobility significantly.
%U http://arxiv.org/abs/1409.0457v2