Structure transformations and dielectric properties of PbY1/2Nb1/2O3 and PbHo1/2Nb1/2O3 compounds
authors Salak, AN; Vyshatko, NP; Ferreira, VM; Olekhnovich, NM; Shilin, AD
nationality International
journal MATERIALS RESEARCH BULLETIN
author keywords ceramics; oxides; high pressure; X-ray diffraction; ferroelectricity
abstract The metastable pseudomonoclinic perovskite phases, PbY1/23+Nb1/2O3 and PbHo1/2Nb1/2O3 were prepared under conditions of high pressures and temperatures. Investigations of structural parameters, thermal stability and some dielectric properties were carried out. The data were analyzed by comparison with corresponding data of other representatives of the PbB1/23+Nb1/2O3 series. The dependence of unit cell parameters on the B3+ rare earth cation radius for the PbB1/23+Nb1/2O3 perovskites was correlated with a change of electronic structure of the rare earth elements, in particular, with the 4f-shell filling. (C) 2003 Elsevier Science Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0025-5408
year published 2003
volume 38
issue 3
beginning page 453
ending page 460
digital object identifier (doi) 10.1016/S0025-5408(02)01067-X
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000181654000009
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journal impact factor 4.019
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