CRYSTAL-STRUCTURE OF PR2TI2O7

Authors
KOZMIN PA ZAKHAROV NA SURAZHSKAYA MD
Citation
Pa. Kozmin et al., CRYSTAL-STRUCTURE OF PR2TI2O7, Inorganic materials, 33(8), 1997, pp. 850-852
Citations number
7
Categorie Soggetti
Material Science
Journal title
Inorganic materials → ACNP
ISSN journal
00201685
Volume
33
Issue
8
Year of publication
1997
Pages
850 - 852
Database
ISI
SICI code
0020-1685(1997)33:8<850:COP>2.0.ZU;2-Q
Abstract
Crystal structure of Pr2Ti2O7, a member of the A(2)B(2)O(7) ferroelect ric family, was determined by single-crystal x-ray diffraction, Pr2Ti2 O7 has a monoclinic structure with a = 7.704(2) Angstrom, b = 5.485(1) Angstrom, c = 12.996(5) Angstrom, and beta = 98.51(3)degrees; sp. gr. P2(1), Z = 4; R-hkl = 0.045. Analysis of OTiO and TiOTi bond angles a nd bond lengths reveals marked differences between the structures of l ayers in A(2)B(2)O(7) and the perovskite structure.