A CRYSTALLOGRAPHIC AND DIELECTRIC STUDIES IN PB(YB(1/2)NB(1/2))O3-PB(FE(1/2)NB(1/2))O3

The phase change pattern of antiferroelectric and B-site ordered Pb(Yb1/2Nb1/2)O3 on doping ferroelectric and disordered Pb(Fe1/2Nb1/2) O3 has been examined. Initial x-ray diffraction and dielectric constant results show the reduction of the transition temperature with increasing x in (1-x)Pb(Yb1/2Nb1/2)O3 - (x)Pb(Fe1/2Nb1/2)O3. For 0.0 less-than-or-equal-to x less-than-or-equal-to 0.13, the antiferroelectric-paraelectric phase transition is relatively sharp, the low temperature crystal structure of the solid soluion may be analyzed based on an orthorhombic crystal structure. For 0.15 less-than-or-equal-to x less-than-or-equal-to 0.30, the low temperature crystal structure is pseudocubic, and the phase transition changes from a sharp to a diffuse one.
Publisher
GORDON BREACH SCI PUBL LTD
Issue Date
1992
Language
ENG
Keywords

PEROVSKITE; PB(SC1/2TA1/2)O3; TEM

Citation

FERROELECTRICS, v.127, no.1-4, pp.161 - 166

ISSN
0015-0193
DOI
10.1080/00150199208223364
URI
http://hdl.handle.net/10203/55642
Appears in Collection
MS-Journal Papers(저널논문)
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