The temperature isotropic point inside ferroelectric phase of Rb2Cd2(SO4)(3) crystals

Authors
Vlokh, R Skab, I Guzandrow, A Mogylyak, I Smagliy, S Uesu, Y
Citation
R. Vlokh et al., The temperature isotropic point inside ferroelectric phase of Rb2Cd2(SO4)(3) crystals, FERROELECTR, 237(1-4), 2000, pp. 489-495
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
237
Issue
1-4
Year of publication
2000
Pages
489 - 495
Database
ISI
SICI code
0015-0193(2000)237:1-4<489:TTIPIF>2.0.ZU;2-#
Abstract
The investigations of temperature dependence of the birefringence in ferroe lectric phases of Rb2Cd2(SO4)(3) crystals, which belong to langbeinite fami ly were carried out. The temperature isotropic point (temperature point of the absence of linear birefringence) in Rb2Cd2(SO4)(3) crystals in monoclin ic phase at T-i = 113K connected with the change of spontaneous polarizatio n sign was experimentally founded. The existence of temperature isotropic p oint was explained on the base of electrooptical effect induced by spontane ous polarization. It was shown that Rb2Cd2(SO4)(3) crystals belong to the g roup of weak ferroelectrics.