TITLE

Multiferroic properties of layer-structured Bi5Fe0.5Co0.5Ti3O15 ceramics

AUTHOR(S)
Xiangyu Mao; Wei Wang; Xiaobing Chen; Yalin Lu
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p082901
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Layer-structured, single phase Bi5Fe0.5Co0.5Ti3O15 ceramics was synthesized following a multicalcination procedure. Magnetic moment increases more than three times by substituting half Fe sites by Co ions. The material exhibits an Aurivillius phase with a four-layer unit cell structure, and presents a remarkable coexistence of ferroelectricity and ferromagnetism above room temperature. The measured 2Pr and 2Mr are 13 μC/cm2 and 7.8 memu/g, respectively. The material’s magnetic behavior below 275 °C is relaxationlike and its magnetic Curie temperature is ∼345 °C.
ACCESSION #
43944887

 

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