Effects of Gd3+ doping on structural and dielectric properties of PZT (Zr:Ti = 52:48) piezoceramics L. Pdungsap, S. Boonyeun, P. Winotai, N. Udomkan and P. Limsuwan Eur. Phys. J. B, 48 3 (2005) 367-372 Published online: 23 December 2005 DOI: 10.1140/epjb/e2005-00407-9