LOW-TEMPERATURE LUMINESCENCE ANOMALIES OF ANTIFERROMAGNETIC CRYSTALS,

Abstract

Low temperature luminescence anomalies of MnF2 crystals were studied. The luminescence spectra were studed by means of a prism monochromator. The intensity of luminescence was recorded by the EEU-17A photomultiplier. The three optical transitions in MnF2 were studied by means of the monochromatic light. The phonon intensity decreases rapidly with a decrease in temperature from 77 to 20 degrees K. It is proposed that the luminescence anomalies observed in antiferromagnetic crystals are associated with the condensation of local magnetic vibrations.

Document Details

Document Type
Technical Report
Publication Date
Jan 31, 1969
Accession Number
AD0693815

Entities

People

  • E. V. Matyushkin
  • V. V. Eremenko

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Condensation
  • Intensity
  • Low Temperature
  • Luminescence
  • Monochromatic Light
  • Monochromators
  • Spectra
  • Transition Temperature
  • Transitions
  • Vibration

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Spectroscopy.