Geng, Baisong; Horng, Jason; Zhang, Yuanbo; Tang, Tsung-Ta; Park, Cheol-Hwan; Girit, Caglar; Hao, Zhao; Martin, Michael; Zettl, Alex; Crommie, Michael; Louie, Steven; Wang, Feng
Physica Status Solidi (B): Basic Research, Vol.247 No.11-12, pp.2931-2934