“Dirac fermion reflector by ballistic graphene sawtooth-shaped npn junctions”
Sei Morikawa, Quentin Wilmart, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Bernard Pla?ais, and Tomoki Machida
Semiconductor Science and Technology 32, 045010 (2017)
DOI: 10.1088/1361-6641/aa6102