• 文献标题:   Acoustically induced current in graphene by aluminum nitride transducers
  • 文献类型:   Article
  • 作  者:   CHEN Y, ZHANG HX, ZHANG H, FENG ZH, ZHAO HY, SUN CL, ZHENG SJ, PANG W, ZHANG DH
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Tianjin Univ
  • 被引频次:   0
  • DOI:   10.1063/1.4940400
  • 出版年:   2016

▎ 摘  要

We report on the excitation of acousto-eletric (AE) charge transport in monolayer graphene by acoustic transducers based on aluminum nitride thin films. The acoustic waves induced macroscopic current flow that linearly scaled with input power. The AE current exhibited unique frequency dependence due to special configuration and piezoelectric properties of the transducer, which led to transitions between traveling and standing acoustic waves across a characteristic frequency. A Finite Element model was built to investigate and understand the phenomena and the underlying mechanisms. (C) 2016 AIP Publishing LLC.