@article {244, title = {Approaching the intrinsic band gap in suspended high-mobility graphene nanoribbons}, journal = {PHYSICAL REVIEW B}, volume = {84}, year = {2011}, pages = {125411}, author = {Ming-Wei Lin and Cheng Ling and Luis A. Agapito and Nicholas Kioussis and Yiyang Zhang and Mark Ming-Cheng Cheng and Wei L. Wang and Efthimios Kaxiras and Zhixian Zhou1,} }