Accession Number : ADA189093

Title :   Image Charge, Coherent Scattering, and Symmetry Effects in Electron Stimulated Desorption: O(-) from O sub 2 Condensed on Metals.

Descriptive Note : Interim technical rept.,

Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON D C DEPT OF CHEMISTRY

Personal Author(s) : Ramaker, David E ; Sambe, Hideo

PDF Url : ADA189093

Report Date : Dec 1987

Pagination or Media Count : 8

Abstract : This work examines Environmental effects, which do not arise from alteration of the excited-state lifetime, but rather from. (1) the image charge induced in the metal substrate, (2) adsorbate-adsorbate interactions which reduce the symmetry and hence cause certain selection rules to breakdown, and (3) coherent scattering of electrons in the substrate. Review previously were reported ESD yields of 0- for 02 condensed on polycrystalline Pt in the electron energy range 0 to 40 eV. Keywords: Electron stimulated desorption, Image charge, Coherent scattering.

Descriptors :   *COHERENT SCATTERING, *ELECTRONS, *METALS, *SUBSTRATES, *OXYGEN, DESORPTION, ENERGY LEVELS, EXCITATION, LIFE SPAN(BIOLOGY), STIMULATION(GENERAL), SYMMETRY

Subject Categories : Inorganic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE