2ND-ORDER DISPLACIVE PHASE-TRANSITION IN FERROELECTRIC SOLID-SOLUTIONS

Authors
ORBUKH VI MANAEV OA
Citation
Vi. Orbukh et Oa. Manaev, 2ND-ORDER DISPLACIVE PHASE-TRANSITION IN FERROELECTRIC SOLID-SOLUTIONS, Physica status solidi. b, Basic research, 179(1), 1993, pp. 207-213
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. b, Basic research → ACNP
ISSN journal
03701972
Volume
179
Issue
1
Year of publication
1993
Pages
207 - 213
Database
ISI
SICI code
0370-1972(1993)179:1<207:2DPIFS>2.0.ZU;2-X
Abstract
The method of the average field is employed to study the second-order displacive phase transition in ferroelectric solid solutions. Computat ion of the free energy of the solid solution is made for ferroelectric and paraelectric phases. Temperature dependences of the spontaneous p olarization, concentration dependences of the phase transition tempera ture, Curie constant, and dielectric susceptibility as well as the con dition for the existence of the phase transition in mixed crystals are obtained.