• 文献标题:   Oscillation stop as a way to determine spectral characteristics of a graphene resonator
  • 文献类型:   Article
  • 作  者:   MOROZOV NF, BERINSKII IE, INDEITSEV DA, PRIVALOVA OV, SKUBOV DY, SHTUKIN LV
  • 作者关键词:  
  • 出版物名称:   DOKLADY PHYSICS
  • ISSN:   1028-3358 EI 1562-6903
  • 通讯作者地址:   Russian Acad Sci
  • 被引频次:   3
  • DOI:   10.1134/S1028335814060068
  • 出版年:   2014

▎ 摘  要

A nanoresonator based on a graphene layer is investigated as an electromechanical oscillatory system. Mechanical oscillations are excited in it by a high-frequency alternating electric field. A nanoresonator is considered as a capacitor with kinematically varying capacity of the determined transverse deformation of the graphene layer as one of its plates. In the case of small ratios of energy accumulated in a capacitor to the amplitude of energy of mechanical oscillations and the time constant of the capacitor charge to the period of free oscillations, excitation of both common and parametric resonances is possible. It is shown that upon decreasing the external frequency lower than the half-frequency of free oscillations, the cessation of forced oscillations of the nanolayer is observed. This makes it possible to determine more reliably the variations in the intrinsic frequency of the nanoresonator upon deposition of a nanoparticle on it.