• 文献标题:   Inelastic electron tunneling into graphene nanostructures on a metal surface
  • 文献类型:   Article
  • 作  者:   NEEL N, STEINKE C, WEHLING TO, KROGER J
  • 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:   Tech Univ Ilmenau
  • 被引频次:   4
  • DOI:   10.1103/PhysRevB.95.161410
  • 出版年:   2017

▎ 摘  要

Wrinkles and blisters of graphene on Ir(111) give rise to remarkably high signals in inelastic electron tunneling spectroscopy due to graphene phonons. Spatially resolved spectra unravel the gradual increase of the graphene phonon signatures with progressive delamination of graphene from the metal surface. Spectroscopy of the Ir(111) surface resonance evidences that the graphene-metal hybridization is efficiently reduced in wrinkles and blisters. A high phonon density of states favors the observation of phonons with wave vectors near the (M) over bar point of the surface Brillouin zone.