The surface properties of barium titanate

Semiconductor thin films are used to study the ferroelectric surface. The observed n-type germanium, deposited on BaTiO3 at elevated temperatures, is explained on the basis of the ferroelectric space-charge layer. The piezoresistance effect in semiconductors provides a tool for the study of surface strains in BaTiO3, particularly at crystallographic phase transitions.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/33131/1/0000517.pd