Accession Number:

ADA158660

Title:

Possible Mechanisms of Atom Transfer in Scanning Tunneling Microscopy,

Descriptive Note:

Corporate Author:

CHICAGO UNIV IL JAMES FRANCK INST

Personal Author(s):

Report Date:

1985-07-01

Pagination or Media Count:

9.0

Abstract:

Various mechanisms for the sudden transfer of an atom from or to the tip of a scanning tunneling microscope are considered. It is concluded that thermal desorption could be responsible and also that quasi-contact in which the adsorbed atom is in effect touching both surfaces, which would still be separated from each other by 2-4 A can also lead to unactivated transfer via tunneling. For barrier widths as small as 0.5 A, however, tunneling becomes negligible.

Subject Categories:

  • Physical Chemistry
  • Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE