Structural and Dielectric Behavior or Ba-Substituted Pb(Yb 1/2 Nb 1/2 )O 3 Ceramics

The crystal structure and the dielectric properties of the antiferroelectric solid solution of (1 m x )Pb(Yb 1/2 Nb 1/2 )O 3 m x Ba(Yb 1/2 Nb 1/2 )O 3 (Pb 1 m x Ba x YN) (0 h x h 0.30) have been studied. The crystal structure is shown to become pseudocubic from the PYN's orthorhombic structure...

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Bibliographic Details
Published in:Integrated ferroelectrics 2002-01, Vol.47 (1), p.3-10
Main Authors: Kim, Jai-Hyun, Kim, Hyoun Soo, Koh, Kyung Shin, Shim, Il Wun, Choo, Woong Kil
Format: Article
Language:English
Subjects:
Antiferroelectric
Dielectric
Ferroelectric
Perovskite
Relaxor
Relaxor To Normal
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Summary:The crystal structure and the dielectric properties of the antiferroelectric solid solution of (1 m x )Pb(Yb 1/2 Nb 1/2 )O 3 m x Ba(Yb 1/2 Nb 1/2 )O 3 (Pb 1 m x Ba x YN) (0 h x h 0.30) have been studied. The crystal structure is shown to become pseudocubic from the PYN's orthorhombic structure on solutionizing for x >0.5 while the transition shows a normal first-order paraelectric(PE) - antiferroelectric(AFE) behavior increasing x < 0.14. The transition temperature gradually decreases with the increasing Ba 2+ concentration. In the composition range 0.16 x 0.30, a typical relaxor behavior is displayed.
ISSN:1058-4587
1607-8489
DOI:10.1080/713718275