Glazer, A. M. (Anthony Michael), Zhang, Nan, Bartasyte, Ausrine, Keeble, Dean Samuel, Huband, Steven and Thomas, Pam A. (2010) Observation of unusual temperature-dependent stripes in LiTaO3 and LiTa(x)Nb1(-x)O-3 crystals with near-zero birefringence. Journal of Applied Crystallography, Vol.43 (No.Part 6). pp. 1305-1313. doi:10.1107/S0021889810033868

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Abstract

A birefringence imaging microscopy study of LiTaO3 and some mixed LiTa (x) Nb1-x O-3 crystals is reported. The initially congruent LiTaO3 crystals have been subject to vapour transport equilibration in order to increase the Li content and at the same time to reduce the optical birefringence close to zero at room temperature. In both types of crystal, the presence of unusual periodic self-organized stripes, existing over large distances, has been observed, which correlate with the well documented cleavage and twin planes in this material. Furthermore, the stripes become narrower as the temperature is changed away from the zero-birefringence temperature, but become temperature-independent above the ferroelectric-paraelectric phase-transition temperature.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Journal of Applied Crystallography
Publisher:	Wiley-Blackwell Publishing Ltd.
ISSN:	0021-8898
Official Date:	December 2010
Dates:	Date Event December 2010 Published
Volume:	Vol.43
Number:	No.Part 6
Number of Pages:	9
Page Range:	pp. 1305-1313
DOI:	10.1107/S0021889810033868
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Engineering and Physical Sciences Research Council (EPSRC)

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