PBGE3 STRUCTURE PHASE-TRANSITIONS UNDER H IGH-PRESSURES AND TEMPERATURES AND FERROELECTRIC PEROVSKITES OF THE PBZRO3-PBGEO3 SYSTEM

Authors
OLEKHNOVICH NM SALAK AN ZHABKO TE SAVCHUK VK SHILIN AD
Citation
Nm. Olekhnovich et al., PBGE3 STRUCTURE PHASE-TRANSITIONS UNDER H IGH-PRESSURES AND TEMPERATURES AND FERROELECTRIC PEROVSKITES OF THE PBZRO3-PBGEO3 SYSTEM, Doklady Akademii nauk BSSR, 38(2), 1994, pp. 40-44
Citations number
9
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Doklady Akademii nauk BSSR → ACNP
ISSN journal
0002354X
Volume
38
Issue
2
Year of publication
1994
Pages
40 - 44
Database
ISI
SICI code
0002-354X(1994)38:2<40:PSPUHI>2.0.ZU;2-1
Abstract
The monoclinic phase PbGeO3 synthesized under ambient pressure is foun d to transform to garnet ilmenite and perovskite phases with increasin g pressure. Lattice parameters are for the tetragonal garnet phase a=1 .383, c=1.312 nm, for the hexagonal ilmenite phase a=0.5504, c=1.420 n m and for the cubic perovskite phase a=0.3968 nm. Structural and ferro electric characteristics are given for perovskites of the PbZrxGe1-xO3 solid solution system synthesized under high pressure and temperature s.