Ferroelectric domain gratings and Barkhausen spikes in potassium lithium tantalate niobate

Xiaolin Tong; Amnon Yariv; Min Zhang; Aharon J. Agranat; Rudolf Hofmeister; Victor Leyva

doi:10.1063/1.118827

Ferroelectric domain gratings and Barkhausen spikes in potassium lithium tantalate niobate

Xiaolin Tong^*, Amnon Yariv, Min Zhang, Aharon J. Agranat, Rudolf Hofmeister, Victor Leyva

^*Corresponding author for this work

Department of Applied Physics

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Abstract

The observation of Barkhausen current spikes during the recording of volume phase holograms in potassium lithium tantalate niobate is reported on. These spikes are due to the ferroelectric domain reversal induced by photorefractive space charge fields. Both "small" (1 nA) and "large" (100 nA) spikes are observed, which correspond to micro and macro domain reversal, respectively. The diffraction efficiency can change as much as 50% during a single macrodomain switching.

Original language	English
Pages (from-to)	2241-2243
Number of pages	3
Journal	Applied Physics Letters
Volume	70
Issue number	17
DOIs	https://doi.org/10.1063/1.118827
State	Published - 28 Apr 1997

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AU - Yariv, Amnon

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AU - Hofmeister, Rudolf

AU - Leyva, Victor

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Ferroelectric domain gratings and Barkhausen spikes in potassium lithium tantalate niobate

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