Low-field magnetoresistance is ubiquitous in low-dimensional metallic systems with high resistivity and well understood as arising due to quantum interference on self-intersecting diffusive trajectories. We have found that in graphene this weak-localization magnetoresistance is strongly suppressed and, in some cases, completely absent. The unexpected observation is attributed to mesoscopic corrugations of graphene sheets which can cause a dephasing effect similar to that of a random magnetic field.
Liam A. Cohen, Noah L. Samuelson, Taige Wang, Kai Klocke, Cian C. Reeves, Takashi Taniguchi, Kenji Watanabe, Sagar Vijay, Michael P. Zaletel, Andrea F. Young
Liam Cohen, Noah L. Samuelson, Taige Wang, Kai Klocke, Cian C. Reeves, Takashi Taniguchi, Kenji Watanabe, Sagar Vijay, Michael P. Zaletel, Andrea F. Young
Ayshi Mukherjee, Surat Layek, Subhajit Sinha, Ritajit Kundu, Alisha H. Marchawala, Mahesh Hingankar, Joydip Sarkar, L. D. Varma Sangani, H. P. Agarwal, Sanat Ghosh, Aya Batoul Tazi, Kenji Watanabe, Takashi Taniguchi, Abhay N. Pasupathy, Arijit Kundu, Mandar M. Deshmukh
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