THE MOSSBAUER EFFECT IN SURFACE STUDIES FE57 ON W AND ON AG,

Abstract

The Mossbauer effect at crystal surfaces is discussed. Fe57 on the surface of W and Ag has been measured under ultra-high vacuum. The W experiment yielded Debye temperatures of 406 plus or minus 12, 354 plus or minus 30, and 255 plus or minus 30K in the bulk, along the surface normal, and parallel to the surface, respectively. In Ag the bulk Debye temperature was 253 plus or minus 12K while the surface value was 380 plus or minus 30K and showed no angular dependence. Quadrupole splitting in both experiments indicated surface field gradients of about (-3 x 10 to the 16th power Volts/cm2). (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0647244

Entities

People

  • J. W. Burton
  • R. P. Godwin

Organizations

  • University of Illinois Urbana–Champaign

Tags

DTIC Thesaurus Topics

  • High Vacuum
  • Isotherms
  • Mossbauer Effect
  • Splitting
  • Temperature Gradients
  • Vacuum

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Plasma Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.