Effect of tetragonal-tetragonal phase transition on Raman spectra and lattice dynamics of CsScF4 crystal

Authors
Krylov, AS Shmygol, IV Shebanin, AP Vtyurin, AN Ageev, AG Fleisher, OI
Citation
As. Krylov et al., Effect of tetragonal-tetragonal phase transition on Raman spectra and lattice dynamics of CsScF4 crystal, FERROELECTR, 233(1-2), 1999, pp. 103-110
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
233
Issue
1-2
Year of publication
1999
Pages
103 - 110
Database
ISI
SICI code
0015-0193(1999)233:1-2<103:EOTPTO>2.0.ZU;2-E
Abstract
Raman scattering spectra of CsScF4 crystal has been studied in both tetrago nal phases, and lattice dynamics of the upper phase has been simulated nume rically. Soft mode condensation at Brillouin zone boundary was obtained in the model simulations, and observed in experimental spectra below the tetra gonal - tetragonal phase transition.