Electrical properties of flash evaporated ferroelectric BaTiO3thin films
- 14 June 1971
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 4 (8) , 898-909
- https://doi.org/10.1088/0022-3719/4/8/016
Abstract
Flash evaporated, ferroelectric, barium titanate films have been prepared in the thickness range 0.04-2.0 mu m. They consist of oriental tetragonal crystallites having dimensions comparable with film thickness. Thickness dependent permittivity and other dielectric properties are interpreted in terms of Schottky barriers at the film-electrode interface. Switching is observed in films as thin as 0.08 mu m and loops and current transients are surprisingly similar to those from bulk ceramics. Switchable spontaneous polarization values are as high as 20% of the bulk single crystal value.Keywords
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