Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

CHARGE-EXCHANGE PROCESSES IN LI+ AND HE+ ION-SCATTERING FROM ALKALI ADSORBATES ON CU(110)

Tools
- Tools
+ Tools

UNSPECIFIED (1991) CHARGE-EXCHANGE PROCESSES IN LI+ AND HE+ ION-SCATTERING FROM ALKALI ADSORBATES ON CU(110). Surface Science, 244 (3). pp. 247-258.

Research output not available from this repository, contact author.

Request Changes to record.

Abstract

Measurements have been made of the 1 keV Li+ --> Cs, Li+ --> Cu, He+ --> Na, He+ --> K, He+ --> Cs and He+ --> Cu ion scattering yields from submonolayer coverages of Na, K and Cs on Cu(110) using a 150-degrees scattering angle and 13-degrees incidence relative to the surface normal. The Li+ --> Cs data indicate that there is a steady decrease in the scattered ion fraction as the work-function decreases throughout the full submonolayer coverage range, a result which is quantitatively inconsistent with the semi-classical resonant charge transfer theory in either local or average work-function pictures. Possible origins of this discrepancy are discussed. He+ ion scattering results indicate that the nature of the He+ ion-surface charge exchange may also be dependent on the alkali overlayer coverage, and it is proposed that resonant charge transfer, as well as Auger neutralisation, becomes important as the work-function falls. The presence of a substantial inelastically scattered background in the He+ ion scattering spectra from the alkali-covered surfaces (which may be associated with plasmon creation) is, however, evidence that trajectory dependent neutralisation is far less effective in Na and K overlayers than in the Cu substrate.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Q Science > QC Physics
Journal or Publication Title: Surface Science
Publisher: ELSEVIER SCIENCE BV
ISSN: 0039-6028
Official Date: March 1991
Dates:
DateEvent
March 1991UNSPECIFIED
Volume: 244
Number: 3
Number of Pages: 12
Page Range: pp. 247-258
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item
twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us