Dielectric and X-Ray Diffraction Studies in Highly Ordered Complex Perovskite Pb(Yb1/2Nb1/2)O3
- 1 May 1991
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 30 (5R)
- https://doi.org/10.1143/jjap.30.1028
Abstract
Dielectric and X-ray diffraction measurements were used to characterize the structural phase transition occurring in antiferroelectric Pb(Yb1/2Nb1/2)O3 compound. Dielectric behavior for ceramics shows a sharp transition with a large temperature hysteresis of about 6°C near transition temperature. The lattice parameters and spontaneous strain have been investigated in the temperature range between 20 and 400°C using X-ray powder diffraction. High temperature X-ray data indicates that the Pb(Yb1/2Nb1/2)O3 undergoes an orthorhombic to cubic phase transition near transition temperature. The temperature dependence of the spontaneous strain is discussed by phenomenological theory.Keywords
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