Method for post-poling mobile ion redistribution in lithium...

Details Method for post-poling mobile ion redistribution in lithium... Method for post-poling mobile ion redistribution in lithium...

C - Chemistry, Metallurgy

30

B

C30B 33/04 (2006.01) C30B 33/00 (2006.01)

Patent

CA 2240507

A method for poling a ferroelectric crystal (10) includes heating the crystal (10) to a temperature above its Curie temperature and applying a first selected voltage to the electrodes to apply an electric field to the crystal (10). The temperature of the crystal (10) is then reduced to a temperature below the Curie temperature of the crystal (10), and a second electric field having polarity opposite to the polarity of the first electric field is applied to the crystal (10). Application of the second electric field reduces nonuniformity in ion concentration across the crystal (10).

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