Inelastic electron-tunneling spectroscopy of nanoporous gold films

H. W. Liu, R. Nishitani, T. Fujita, W. Li, L. Zhang, X. Y. Lang, P. Richard, K. S. Nakayama, X. Chen, M. W. Chen, Q. K. Xue

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We investigated the localized electronic properties of nanoporous gold films by using an ultrahigh vacuum scanning tunneling microscope at low temperature (4.2 K). Second derivative scanning tunneling spectroscopy shows the plasmon peaks of the nanoporous gold films, which are excited by inelastic tunneling electrons. We propose that the nanorod model is appropriate for nanoporous gold studies at the nanometer scale. These results are supported by a three-dimensional electron tomography analysis and theoretical calculations of nanoporous gold with an ellipsoidal shape.

Original languageEnglish
Article number035426
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number3
Publication statusPublished - 2014 Jan 21

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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