Pretransitional effects at the superionic phase transition of CsDSO4 single crystals

Citation
T. Pawlowski et al., Pretransitional effects at the superionic phase transition of CsDSO4 single crystals, J MOL STRUC, 555, 2000, pp. 317-323
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR STRUCTURE
ISSN journal
00222860 → ACNP
Volume
555
Year of publication
2000
Pages
317 - 323
Database
ISI
SICI code
0022-2860(20001128)555:<317:PEATSP>2.0.ZU;2-9
Abstract
Temperature variations of Raman internal modes in the CsDSO4 single crystal were studied in the vicinity of superionic phase transition. Anomalous beh aviour was observed 3 K below the superionic phase transition temperature T -s. Within the same temperature range, new ferroelastic domains with (101) walls were observed in the (010) surface of the crystal. The results point to an existence either of a heterophase or a new phase in CsDSO4, in the te mperature range T-s-3 K. (C) 2000 Elsevier Science B.V. All rights reserved .