Scanning tunneling spectroscopy of Ag films: The effect of periodic versus quasiperiodic modulation

Daejin Eom, C. S. Jiang, H. B. Yu, J. Shi, Q. Niu, Ph Ebert, C. K. Shih

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

By using scanning tunneling spectroscopy to probe a silver thin film that contains both periodic and quasiperiodic modulation, and by using Fourier analysis, we unravel the influences of individual Fourier components of the scattering potential (periodic versus quasiperiodic) on the electronic structure of a one-dimensional quasiperiodically modulated thin Ag film. Along the periodically modulated direction, a Bragg reflection-induced energy gap is observed in k space. On the other hand, the exotic E vs k spectrum with many minigaps was observed along the quasiperiodic direction.

Original languageEnglish (US)
Article number206102
JournalPhysical Review Letters
Volume97
Issue number20
DOIs
StatePublished - Nov 23 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Scanning tunneling spectroscopy of Ag films: The effect of periodic versus quasiperiodic modulation'. Together they form a unique fingerprint.

  • Cite this