Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3

Kenji Kitamura; Yasunori Furukawa; Kazuo Niwa; Venkatraman Gopalan; Terence E. Mitchell

doi:10.1063/1.122676

Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO₃

Kenji Kitamura, Yasunori Furukawa, Kazuo Niwa, Venkatraman Gopalan, Terence E. Mitchell

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289 Scopus citations

Abstract

We grew LiTaO₃ single crystals with a composition close to stoichiometry by using a double crucible Czochralski method. The switching field required for 180° ferroelectric domain reversal and the internal fields originating from nonstoichiometric point defects were compared for the stoichiometric and conventional commercially available crystals. The switching fields for the domain reversal in the stoichiometric crystal with a Curie temperature of 685 °C was 1.7 kV/mm. This is about one thirteenth of the switching field required for the conventional LiTaO₃ crystals with a Curie temperature near 600 °C. The internal field in the stoichiometric crystal drastically decreased to 0.1 kV/mm.

Original language	English (US)
Pages (from-to)	3073-3075
Number of pages	3
Journal	Applied Physics Letters
Volume	73
Issue number	21
DOIs	https://doi.org/10.1063/1.122676
State	Published - 1998

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.122676

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title = "Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3",

abstract = "We grew LiTaO3 single crystals with a composition close to stoichiometry by using a double crucible Czochralski method. The switching field required for 180° ferroelectric domain reversal and the internal fields originating from nonstoichiometric point defects were compared for the stoichiometric and conventional commercially available crystals. The switching fields for the domain reversal in the stoichiometric crystal with a Curie temperature of 685 °C was 1.7 kV/mm. This is about one thirteenth of the switching field required for the conventional LiTaO3 crystals with a Curie temperature near 600 °C. The internal field in the stoichiometric crystal drastically decreased to 0.1 kV/mm.",

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T1 - Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3

AU - Kitamura, Kenji

AU - Furukawa, Yasunori

AU - Niwa, Kazuo

AU - Gopalan, Venkatraman

AU - Mitchell, Terence E.

PY - 1998

Y1 - 1998

N2 - We grew LiTaO3 single crystals with a composition close to stoichiometry by using a double crucible Czochralski method. The switching field required for 180° ferroelectric domain reversal and the internal fields originating from nonstoichiometric point defects were compared for the stoichiometric and conventional commercially available crystals. The switching fields for the domain reversal in the stoichiometric crystal with a Curie temperature of 685 °C was 1.7 kV/mm. This is about one thirteenth of the switching field required for the conventional LiTaO3 crystals with a Curie temperature near 600 °C. The internal field in the stoichiometric crystal drastically decreased to 0.1 kV/mm.

AB - We grew LiTaO3 single crystals with a composition close to stoichiometry by using a double crucible Czochralski method. The switching field required for 180° ferroelectric domain reversal and the internal fields originating from nonstoichiometric point defects were compared for the stoichiometric and conventional commercially available crystals. The switching fields for the domain reversal in the stoichiometric crystal with a Curie temperature of 685 °C was 1.7 kV/mm. This is about one thirteenth of the switching field required for the conventional LiTaO3 crystals with a Curie temperature near 600 °C. The internal field in the stoichiometric crystal drastically decreased to 0.1 kV/mm.

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Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO₃

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