%0 Journal Article %K Thin films %K Film growth %K Ferroelectric materials %K Doping (additives) %K Lead compounds %K Doppler effect %K Positron annihilation %A T Fhessnegg %A S Aggarwal %A B Nielsen %A Ramamoorthy Ramesh %A D.J Keeble %A E.H Poindcxtor %B IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control %D 2000 %G eng %P 916-920 %R 10.1109/58.852074 %T A study of vacancy-related defects in (pb,la)(zr,ti)o3 thin films using positron annihilation %V 47