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Ferroic Properties of Highly Dense Multiferroic Bi1−xLa0.05TbxFeO3 Ceramics Via Sheltered Spark Plasma Sintering

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Multiferroic Bi0.95−xLa0.05TbxFeO3 (BLTFO) ceramics were prepared by spark plasma sintering. The protection of CeO2 powders in the spark plasma sintering process can effectively restrain the valence fluctuation of iron ions and high-dense BLTFO ceramics with good dielectric and ferroelectric properties are fabricated. The BLTFO ceramics have low loss (tan∼5%) between 102 and 106 Hz. The doping of Tb can increase the dielectric and ferromagnetic properties, but decrease the ferroelectricity of BLTFO ceramics.

Document Type: Research Article


Affiliations: 1: State Key Laboratory of New Ceramics and Fine Progressing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China 2: Arrhenius Laboratory, Department of Inorganic Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden

Publication date: July 1, 2008


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