Accession Number:

ADA141319

Title:

Electron Emission and Ion Desorption Spectroscopy of Clean and Oxidized Ti(0001).

Descriptive Note:

Interim rept.,

Corporate Author:

NATIONAL BUREAU OF STANDARDS WASHINGTON DC SURFACE SCIENCE DIV

Personal Author(s):

Report Date:

1984-03-30

Pagination or Media Count:

124.0

Abstract:

The electronic structure of Ti0001 has been investigated by energy loss spectroscopy ELS, Auger electron spectroscopy AES, ultraviolet photoemission spectroscopy UPS using synchrotron radiation and electron stimulated desorption ESD. Resonant electron emission due to a direct recombination process involving an atomic 3p - 3d interaction has been observed. Surface oxidation results in the formation of a thin protective Ti02 layer which is stable to 250 deg C. In the oxide, the direct recombination process following 3p excitation gives rise to resonantly enhanced emission from the oxide valence end. The cross section for electron and photon stimulated O desorption is shown to be dominated by these atomic resonance effects as well. Author

Subject Categories:

  • Inorganic Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE