
%0 Journal Article
%A Zheng-Cai, Xia 
%A Chao-Qun, Tang 
%A Dong-Xiang, Zhou 
%A Jian-Hui, Yang 
%T Effect of Interfaces on Dielectric Relaxation in La<emph tye="8">0.35</emph>Sr<emph tye="8">0.6</emph>MnO<emph tye="8">3 </emph>-YSZ
%J Australian Journal of Physics
%D 2001/03/02
%V 53
%N 5
%P 715-721
%K 
%R https://doi.org/10.1071/PH00049
%U https://www.publish.csiro.au/paper/PH00049 
%X The perovskite structure material La 0.35 Sr 0.6 MnO 3 was sintered in air and the mixed ceramic of a 0.35 Sr 0.6 MnO 3 and 8 mol % Y 2 O 3 +ZrO 2 with a 1:1 mass rate was also sintered in air, both at 1530 K for 12 hour. The AC complex impedance spectra have been measured and the effect of the interface between La 0.35 Sr 0.6 MnO 3 and YSZ on dielectric relaxation properties of La 0.35 Sr 0.6 MnO 3 has been investigated. A schematic of diffusion phase formation and the equivalent circuits are proposed for explaining the results. In the complex impedance spectra, the first and second semicircles correspond to the grain-boundary and interface respectively. The results show that the dielectric relaxation properties and structure of the mixed ceramic are different to that of single phase La 0.35 Sr 0.6 MnO 3 . The interface has an important effect on the electric properties of the mixed ceramic and produces a dielectric relaxation in low frequency. 
