Journal
CRYSTAL RESEARCH AND TECHNOLOGY
Volume 42, Issue 4, Pages 378-383Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/crat.200610831
Keywords
PZN-PT; single crystal; domains; birefringence; PLM
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Domain structure and phase transition sequence of 0.91PZN-0.09PT single crystal, grown from high temperature solution, have been analysed using polarised light microscopy. The domain structure of (001)(cub) cut single crystal exhibit co-existence of rhombohedral and tetragonal phases. The sequence and phase transition temperatures have been determined from temperature dependence of birefringence. Birefringence measurements during heating and cooling reveal a first order nature of phase transition between rhombohedral (R3m) and tetragonal (P4mm). The birefringence was measured with accuracy of 10(-3). However, dielectric measurement does not provide any evidence of R3m - P4mm phase transition. It is shown that in-situ analysis of domain structure and phase transition can be used as non-destructive analytical tool for determination of local composition and phase transition sequence. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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