Relaxor behavior in Ba(Zn1/3Nb2/3)O3-PbTiO3 new solid solution.
Relaxor behavior has been found in a new solid solution between complex perovskite Ba(Zn(1/3)Nb(2/3))O(3) (BZN) and ferroelectric PbTiO(3) (PT), prepared by solid state reactions. A strong dispersion of the maximum of dielectric permittivity (epsilon(')) appears around the temperature of T(m), which shifts toward higher temperatures with increasing frequency. The variation of T(m) with frequency follows the Vogel-Fulcher relationship. The variation of 1/epsilon(') with temperature above Tm deviates from the Curie-Weiss law, but satisfies a Lorentz-type function. The relaxor behavior becomes weaker upon increasing PT-content.
Long
Xifa
X
Fujian Institute of Research on the Structure ofMatter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002 China.
Ye
Zuo-Guang
ZG
D002516:Ceramics / Q000737:chemistry*; D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D017097:Electric Impedance; D007854:Lead / Q000737:chemistry*; D008422:Materials Testing; D008956:Models, Chemical; D008968:Molecular Conformation; D013696:Temperature; D014025:Titanium / Q000737:chemistry*
C481719:lead titanate; D007854:Lead; D014025:Titanium