Accession Number : AD0693815

Title :   LOW-TEMPERATURE LUMINESCENCE ANOMALIES OF ANTIFERROMAGNETIC CRYSTALS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Eremenko,V. V. ; Matyushkin,E. V.

Report Date : 31 JAN 1969

Pagination or Media Count : 6

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.

Descriptors :   (*CRYSTALS, *LUMINESCENCE), ANTIFERROMAGNETISM, MANGANESE COMPOUNDS, CRYOGENICS, ABSORPTION SPECTRA, ELECTRON TRANSITIONS, ANOMALIES, USSR

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE