• 文献标题:   Moire-Tile Manipulation-Induced Friction Switch of Graphene on a Platinum Surface
  • 文献类型:   Article
  • 作  者:   LIU Z, VILHENA JG, MEYER E, HINAUT A, SCHERB S, LUO F, ZHANG JY, GLATZEL T, GNECCO E
  • 作者关键词:   graphene, moire superlattice, friction, critical normal load, superlubricdissipative transition
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984 EI 1530-6992
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1021/acs.nanolett.2c03818 EA MAR 2023
  • 出版年:   2023

▎ 摘  要

Friction control and technological advancement are intimately intertwined. Concomitantly, two-dimensional materials occupy a unique position for realizing quasi-frictionless contacts. However, the question arises of how to tune superlubric sliding. Drawing inspiration from twistronics, we propose to control superlubricity via moire patterning. Friction force microscopy and molecular dynamics simulations unequivocally demonstrate a transition from a superlubric to dissipative sliding regime for different twist angles of graphene moires on a Pt(111) surface triggered by the normal force. This follows from a novel mechanism at superlattice level where, beyond a critical load, moire tiles are manipulated in a highly dissipative shear process connected to the twist angle. Importantly, the atomic detail of the dissipation associated with the moire tile manipulation-i.e., enduring forced registry beyond a critical normal load-allows the bridging of disparate sliding regimes in a reversible manner, thus paving the road for a subtly intrinsic control of superlubricity.