Double hysteresis loop in BaTi1−xHfxO3 ferroelectric ceramics
作者： S. K. Das , B. K. Roul
DOI: 10.1007/S10854-015-3143-8
关键词: Ferroelectric ceramics 、 Hysteresis 、 Materials science 、 Microstructure 、 Ferroelectricity 、 Analytical chemistry 、 Coercivity 、 Mineralogy 、 Barium titanate 、 Tetragonal crystal system 、 Solid solution
摘要: Hafnium doped barium titanate ceramics were prepared by the conventional solid-state reaction method. The structural, microstructure and ferroelectric properties analyzed with varying Hf concentration. It is found that crystal structure of solid solution remains in tetragonal phase decrease tetragonality increasing ion grain growth habit significantly depending upon remnant polarization coercive field decreased along narrowing central portion hysteresis loop double loops are associated onset an antiferroelectric order it increased
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