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Growth defects in a PZNT93/7 crystal prepared by directional solidification
Author(s) -
Jin Min,
Xu Jiayue,
Li Xinhua,
Shen Hui,
He Qingbo
Publication year - 2008
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200811153
Subject(s) - crystal (programming language) , stoichiometry , crystal growth , materials science , ferroelectricity , crystallography , full width at half maximum , analytical chemistry (journal) , chemistry , organic chemistry , optoelectronics , computer science , dielectric , programming language
Novel relaxor ferroelectric crystal 0.93Pb(Zn 1/3 Nb 2/3 )O 3 ‐0.07PbTiO 3 (PZNT93/7) with dimensions about Ø40× 70 mm 3 was obtained by directional solidification technique. The growth defects of the crystal were investigated. Rocking curve analysis revealed the crystalline quality of PZNT93/7 crystal was not perfect and the FWHM value was measured to be about 0.7°. Some pits and oxide particles in micro‐size were formed in the crystal due to the growth conditions. A series of growth steps parallel to (001) face were observed which were attributed to the growth behavior. Moreover, it was found the average chemical composition of the crystal was deviated slightly to the stoichiometric value of PZNT93/7. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)