Investigation of the dielectric properties of MnO-additive Pb(Fe2∕3W1∕3)–PbTiO3 relaxors using the spin-glass model
作者： Cheng-Shong Hong , Sheng-Yuan Chu , Bing-Jing Li , Wen-Chang Su , Ren-Chuan Chang
DOI: 10.1063/1.2903511
关键词:
摘要: The low-field dielectric responses of pure and 0.15wt.% MnO-added (1−x)Pb(Fe2∕3W1∕3)O3–xPbTiO3 [(1−x)PFW–xPT] were investigated with the empirical model, Curie–Weiss law spin-glass model. According to experimental data fitting results, we conclude that (1) lattice structure is changed electron compensation induced MnO addition. (2) behaviors obey as temperature much far above Tm for all samples. (3) TCW, at which deviate from law, higher diffuse phase characteristic more obvious decreasing PbTiO3 content or adding MnO. (4) tailed temperature-dependent local order parameters, are derived model transition relaxors show thermal stability in spontaneous polarization microregions. (5) ordering parameters change a long-range-...
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