• 文献标题:   Graphene-Based Nanodynamometer
  • 文献类型:   Article
  • 作  者:   POKLONSKI NA, SIAHLO AI, VYRKO SA, POPOV AM, LOZOVIK YE, LEBEDEVA IV, KNIZHNIK AA
  • 作者关键词:   bilayer graphene, tunneling conductance, nanoelectromechanical system
  • 出版物名称:   JOURNAL OF COMPUTATIONAL THEORETICAL NANOSCIENCE
  • ISSN:   1546-1955 EI 1546-1963
  • 通讯作者地址:   Belarusian State Univ
  • 被引频次:   10
  • DOI:   10.1166/jctn.2013.2670
  • 出版年:   2013

▎ 摘  要

A new concept of an electromechanical nanodynamometer based on the relative displacement of layers of bilayer graphene is proposed. In this nanodynamometer, force acting on one of the graphene layers causes the relative displacement of this layer and related change of conductance between the layers. Such a force can be determined by measurements of the tunneling conductance between the layers. Dependences of the interlayer interaction energy and the conductance between the graphene layers on their relative position are calculated within the first-principles approach corrected for van der Waals interactions and the Bardeen method, respectively. The characteristics of the nanodynamometer are determined and its possible applications are discussed.