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Composition dependence of forward and reverse coercive fields, and the Curie temperature in lithium tantalate single crystals.
(a) Hysteresis loops for 1st experimental cycle and 22nd experimental cycle of stoichiometric single crystals (SLT-VTE). Cycling frequency was . (b) Coercive fields and spontaneous polarization measured in 22 successive experimental cycles. Coercive fields and coercive field do not change with cycling.
The switching time as a function of field , where the negative sign is for forward poling and the positive sign for reverse poling. The measured internal field .
A comparison of congruent (CLT), near-stoichiometric (NSLT-CZ), and stoichiometric (SLT-VTE) crystals. Measurements not referenced below are from this study.
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