Thermal conductivity of LiKSO4 between 18 and 250 K

Authors
Piskunowicz, P Tylczynski, Z Mielcarek, S Mroz, B Bromberek, M
Citation
P. Piskunowicz et al., Thermal conductivity of LiKSO4 between 18 and 250 K, PHYS ST S-A, 170(1), 1998, pp. 83-89
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
00318965 → ACNP
Volume
170
Issue
1
Year of publication
1998
Pages
83 - 89
Database
ISI
SICI code
0031-8965(199811)170:1<83:TCOLB1>2.0.ZU;2-O
Abstract
The thermal conductivity of LiKSO4 crystals in the direction perpendicular to the sixfold axis was measured in the temperature range from 10 to 250 K. In the vicinity of 38 K anomalous changes in the thermal conductivity were observed. The decrease in thermal conductivity for T < 38 K is probably re lated to the appearance of antiphase domain walls formed as a result of the nonferroic phase transition at that temperature. This effect masks the inf luence of the ferroelastic domain walls on the thermal conductivity of the crystal studied.