• 文献标题:   Superlubricity in quasicrystalline twisted bilayer graphene
  • 文献类型:   Article
  • 作  者:   KOREN E, DUERIG U
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   IBM Res Zurich
  • 被引频次:   15
  • DOI:   10.1103/PhysRevB.93.201404
  • 出版年:   2016

▎ 摘  要

The unique atomic positions in quasicrystals lead to peculiar self-similarity and fractal-like structural morphology. Accordingly, many of the material properties are supposed to manifest exceptional characteristics. In this Rapid Communication, we explain through numerical simulations the fundamental and peculiar aspects of quasicrystals wearless friction manifested in a 30 degrees twisted bilayer graphene system. In particular, the sliding force exhibits a fractal structure with distinct area correlations due to the natural mixture between both periodic and aperiodic lateral modulations. In addition, zero power scaling of the sliding force with respect to the contact area is demonstrated for a geometric sequence of dodecagonal elements.