“Imaging ballistic carrier trajectories in graphene using scanning gate microscopy”
Sei Morikawa, Ziwei Dou, Shu-Wei Wang, Charles G. Smith, Kenji Watanabe, Takashi Taniguchi, Satoru Masubuchi, Tomoki Machida, and Malcolm R. Connolly
Applied Physics Letters 107, 243102 (2015)
DOI: 10.1063/1.4937473