TY - JOUR
AU1 - Barabas, Andrew Z.
AU2 - Sequeira, Ian
AU3 - Yang, Yuhui
AU4 - Barajas-Aguilar, Aaron H.
AU5 - Taniguchi, Takashi
AU6 - Watanabe, Kenji
AU7 - Sanchez-Yamagishi, Javier D.
AB - Abstract: Interfaces of van der Waals (vdW) materials such as graphite and hexagonal boron nitride (hBN) exhibit low-friction sliding due to their atomically-flat surfaces and weak vdW bonding. We demonstrate that microfabricated gold also slides with low friction on hBN. This enables the arbitrary post-fabrication repositioning of device features both at ambient conditions as well as in-situ to a measurement cryostat. We demonstrate mechanically-reconfigurable vdW devices where device geometry and position are continuously-tunable parameters. By fabricating slidable top gates on a graphene-hBN device, we produce a mechanically-tunable quantum point contact where electron confinement and edge-state coupling can be continuously modified. Moreover, we combine in-situ sliding with simultaneous electronic measurements to create new types of scanning probe experiments, where gate electrodes and even entire vdW heterostructures devices can be spatially scanned by sliding across a target.
TI - Mechanically-reconfigurable van der Waals devices via low-friction gold sliding
JF - Condensed Matter
DO - 10.48550/arXiv.2212.02536
DA - 2022-12-05
UR - https://www.deepdyve.com/lp/arxiv-cornell-university/mechanically-reconfigurable-van-der-waals-devices-via-low-friction-tBMoiabiQn
VL - 2022
IS - 2212
DP - DeepDyve
ER -