INTENSITY OF THE MOSSBAUER EFFECT IN CRYSTALS WITH VACANCIES AND IN SOLID SOLUTIONS IN THE CASE OF NONLOCAL VIBRATIONS,

Abstract

The phonon spectra obtained by S. I. Masharov are used to calculate the intensity of the Mossbauer line for crystals with vacancies and for solid solutions with one atom per unit cell, assuming that there are now local vibrations. The vibrations are considered in the harmonic approximation. The vacancy and impurity-atom concentrations are assumed to be small. It is shown that vacancies always decrease the absorption cross section and the Mossbauer-line intensity, and have a stronger influence on the intensity at high temperatures. In the case of solid solutions, the intensity of the Mossbauer line can increase or decrease, depending on the ratio of the masses of the component atoms and on their coupling parameters. The results can be used to determine the vacancy concentration.

Document Details

Document Type
Technical Report
Publication Date
Aug 08, 1968
Accession Number
AD0683141

Entities

People

  • R. M. Sabitov

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Cross Sections
  • Couplings
  • High Temperature
  • Impurities
  • Intensity
  • Mossbauer Effect
  • Solid Solutions
  • Spectra
  • Vibration

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Materials Science and Engineering.