COMPARATIVE-STUDY OF THE PHASE-TRANSITION IN TGSE AND DTGSE (X=0.62) CRYSTALS UNDER GAMMA-IRRADIATION

Authors
SONG YW TARASKIN SA STRUKOV BA
Citation
Yw. Song et al., COMPARATIVE-STUDY OF THE PHASE-TRANSITION IN TGSE AND DTGSE (X=0.62) CRYSTALS UNDER GAMMA-IRRADIATION, Journal of the Korean Physical Society, 27, 1994, pp. 190000073-190000075
Citations number
13
Categorie Soggetti
Physics
Journal title
Journal of the Korean Physical Society → ACNP
ISSN journal
03744884
Volume
27
Year of publication
1994
Supplement
S
Pages
190000073 - 190000075
Database
ISI
SICI code
0374-4884(1994)27:<190000073:COTPIT>2.0.ZU;2-M
Abstract
The influence of gamma-irradiation upon the second order phase transit ion in TGSe and the first order phase transition in DTGSe(x = 0.62) cr ystals was studied by means of specific heat measurements. It is shown that gamma-irradiation induced defects change the thermodynamical beh avior of both crystals and the Landau expansion coefficient becomes a function of the defects concentration. It was revealed that the order of the phase transition in the DTGSe crystal changes for D = 300 KR. T he full picture of both crystals' evolution was presented and analyzed in the framework of the Landau theory with its development for defect ed crystals.