%0 Journal Article %K Perovskite %K Oxides %K Polarization %K Ferroelectric materials %K Thin film devices %K MOS devices %K Heterojunctions %K Lead compounds %K Lead zirconate titanate (PZT) %K Point defects %K Barium titanate %K Relaxation processes %K Electric conductivity of solids %K Fatigue of materials %A S Aggarwal %A Ramamoorthy Ramesh %B Annual Review of Materials Science %D 1998 %G eng %I Annual Reviews Inc. %P 463-499 %R 10.1146/annurev.matsci.28.1.463 %T Point defect chemistry of metal oxide heterostructures %V 28