Birefringence measurements on KTaO3:Li

20 January 1981

journal article
Published by IOP Publishing in Journal of Physics C: Solid State Physics

Vol. 14 (2), L37-L42
https://doi.org/10.1088/0022-3719/14/2/005

Abstract

Birefringence observations in a single crystal of K_1-xLi_xTaO₃ (x=0.026) indicate a first-order transition to a domain state with sections of large uniform spontaneous polarisation. Measurements under small external electric fields suggest that the main difference with usual ferroelectrics lies in the extremely long relaxation times of the present system. The relation of the author's results with the reported polar glass behaviour of the material is discussed.

Keywords

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