Enhanced magnetization in Co and Ta-substituted BiFeO(3) ceramics

Cobalt (Co) and tantalum (Ta) co-substituted BiFeO(3) polycrystalline ceramics were prepared by a solid-state reaction and their magnetic and dielectric properties were investigated. Magnetic hysteresis loops were clearly observed in co-substituted specimens and magnetization was greatly improved. T...

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Published inJournal of magnetism and magnetic materials Vol. 321; no. 19; pp. 3262 - 3265
Main Authors Kim, Won-Sik, Jun, Youn-Ki, Kim, Kee Hoon, Hong, Seong-Hyeon
Format Journal Article
LanguageEnglish
Published 01.10.2009
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Summary:Cobalt (Co) and tantalum (Ta) co-substituted BiFeO(3) polycrystalline ceramics were prepared by a solid-state reaction and their magnetic and dielectric properties were investigated. Magnetic hysteresis loops were clearly observed in co-substituted specimens and magnetization was greatly improved. The co- substitution decreased the electrical conductivity by six orders of magnitude along with the reduction of grain size. The magnetoelectric coupling was estimated in co-substituted BiFeO(3) by determining the changes of the dielectric constant with an external magnetic field.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0304-8853
DOI:10.1016/j.jmmm.2009.05.059