TITLE:
Adsorption of Gold on Iridium
AUTHORS:
Khalil Ismaiel Hashim
KEYWORDS:
Field Emission Microscope, Electron Work Function, Fowler-Nordheim Plots, Coadsorption, Pulsed Temperature-Field (T-F) Emission Microscopy, Low Energy Electron Diffraction (LEED), Auger Electron Spectroscopy (AES), Field Ion Microscopy (FIM)
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.6 No.6,
June
28,
2018
ABSTRACT: The work described in this paper is
a study of gold adsorption on the whole tip surface of iridium field emitter.
The study has been carried out using field emission microscope. Changes in electron
work function of the iridium substrate which are produced by vapor of
deposition of submonolayers of gold in ultra high vacuum have been measured by
noting the changes in the slope of Fowler-Nordheim plots. The same procedure
for studying the adsorption of copper on iridium[1] was followed to study
the adsorption of gold on iridium. Adsorption of gold was examined on the
iridium surface containing the (100) ring which could not be removed thermally.