X-ray-induced phase transformation in congruent and vapor-transport-equilibrated lithium tantalate and lithium niobate

Shur, V. Ya.; Blankova, E. B.; Rumyantsev, E. L.; Nikolaeva, E. V.; Shishkin, E. I.; Barannikov, A. V.; Route, R. K.; Fejer, M. M.; Byer, R. L.
February 2002
Applied Physics Letters;2/11/2002, Vol. 80 Issue 6, p1037
Academic Journal
We have discovered an effect of a partially reversible x-ray-induced increase of diffuse x-ray scattering in both congruent and vapor-transport equilibrated single-crystalline lithium niobate and lithium tantalate. The effect has been attributed to x-ray-induced decay of the ferroelectric phase at room temperature. The x-ray-induced change of the switching current and hysteresis loops observed is in accord with this assumption. © 2002 American Institute of Physics.


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