Eur. Phys. J. AP
Volume 21, Number 2, February 2003
|Page(s)||121 - 126|
|Section||Surfaces, Interfaces and Films|
|Published online||29 November 2002|
Photon emission from STM of granular gold in UHV: comparison with air and study of spectra shifting with tip position
CEMES/CNRS, 29 rue J. Marvig, BP 4347, 31055 Toulouse, France
Corresponding author: email@example.com
Revised: 17 September 2002
Accepted: 1 October 2002
Published online: 29 November 2002
This paper presents an experimental study using photon emission derived from scanning tunnelling microscopy (STM) of a granular gold surface in Ultra High Vacuum (UHV). The aim is to make a comparison with previous results obtained in air or in UHV. The photon emission spectrum also evidences a significant energy shift as the tip moves on a surface grain. This shift is attributed to the local geometry of the junction and to peculiar crystallographic properties of the surface.
PACS: 07.79.Cz – Scanning tunneling microscopes / 73.20.Mf – Collective excitations
© EDP Sciences, 2003
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