Enhanced Performance in Epitaxial Graphene FETs With Optimized Channel Morphology - Lin, Yu-Ming; Farmer, Damon B.; Jenkins, Keith A.; Wu, Yanqing; Tedesco, Joseph L.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.; Gaskill, D. Kurt; Dimitrakopoulos, Christos; Avouris, Phaedon (Ieee Electron Device Letters, 2011)