Affordable Access

Field electron energy spectroscopy of alumina-supported platinum adatoms

Authors
Publication Date
Keywords
  • 68.37.Vj
  • 68.47.Gh
  • 73.20.Hb
  • 73.22.-F
  • 79.70.+Q
  • 81.65.Mq

Abstract

Field electron energy spectroscopy and density functional calculations have been employed to characterize electronic properties of single Pt-adatoms deposited on a thin alumina film. For Pt/Al2O3/NiAl(110) strong current enhancements were measured about 1.4 eV below the Fermi energy. No features were observed for clean Al2O3/NiAl(110) and Pt/NiAl(110) in the accessible energy range. As an explanation we propose a resonance tunneling mechanism involving an occupied electronic state of the Pt adatom close to the Fermi level.

There are no comments yet on this publication. Be the first to share your thoughts.