Birefringence investigations of the Sn2P2(SexS1−x)6uniaxial ferroelectrics behaviour near the lifshitz point

Autor:	S. F. Motrja, S. I. Perechinskii, J. Kroupa, Yu. M. Vysochanskii, V. V. Mitrovcij, A. A. Grabar
Rok vydání:	2000
Předmět:	Phase transition Dipole Birefringence Materials science Tricritical point Condensed matter physics Impurity Renormalization group Condensed Matter Physics Ferroelectricity Electronic Optical and Magnetic Materials Phase diagram
Zdroj:	Ferroelectrics. 237:193-200
ISSN:	1563-5112 0015-0193
Popis:	The temperature dependencies of optical birefringence for nominally pure crystals Sn2P2S6 and these crystals with the impurities of lead or selenium atoms, and solid solutions of Sn2P2(SexS1−x)6 have been investigated. The changes of the anomalies in the vicinity of the second order ferroelectric phase transition with the increase of the defectiveness of the crystalline structure and upon the approach of the phase transition to the Lifshitz point on the phase diagram have been analyzed. The experimental data agree with the known results of the renormalization group analysis of the asymptotic behavior of the dipole system near the Lifshitz point.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::23ae7630f845a89e354341aa961155a2 https://doi.org/10.1080/00150190008216249 Zobrazit plný text záznamu