UNUSUAL BEHAVIOR OF THE LUMINESCENCE IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETIC CRYSTAL CSMNCL32H2O AT LOW-TEMPERATURE

Citation
Vv. Eremenko et al., UNUSUAL BEHAVIOR OF THE LUMINESCENCE IN QUASI-ONE-DIMENSIONAL ANTIFERROMAGNETIC CRYSTAL CSMNCL32H2O AT LOW-TEMPERATURE, Solid state communications, 87(11), 1993, pp. 1027-1029
Citations number
15
Categorie Soggetti
Physics, Condensed Matter
Journal title
ISSN journal
00381098
Volume
87
Issue
11
Year of publication
1993
Pages
1027 - 1029
Database
ISI
SICI code
0038-1098(1993)87:11<1027:UBOTLI>2.0.ZU;2-M
Abstract
An unusual increase of the luminescence relative quantum yield and lum inescence decay rate is revealed in quasi-one-dimensional antiferromag netic crystal CsMnCl32H2O from 6 to 30 K. This effect is related to th ermoactivation of the additional exciton-magnon-phonon emission mechan ism and takes place in one-dimensional antiferromagnets only. The tran sport of excitons, earlier considered to be localized in CMC, is therm oactivated above 50 K.