Influence of oxygen vacancies on the photorefractive effect in barium titanate single crystals

Authors :: Gilles Ormancey
Alain Maillard
Ahmed Lahlafi
P. Jullien
Source :: Ferroelectrics. 108:147-152
Publication Year :: 1990
Publisher :: Informa UK Limited, 1990.
Abstract: In this work the influence of the vacancies concentration in pure BaTiO3 single crystals is studied. It is shown that the oxidation and the reduction do not change the electrooptic coefficients. The reduction modifies the nature of the majority carriers. An evaluation of the trap density N is done.

Subjects :: Reduction (complexity)
Work (thermodynamics)
chemistry.chemical_compound
Materials science
chemistry
Trap density
Barium titanate
Analytical chemistry
chemistry.chemical_element
Photorefractive effect
Condensed Matter Physics
Oxygen
Electronic, Optical and Magnetic Materials

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