Super High Threshold Percolative Ferroelectric/Ferrimagnetic Composite Ceramics with Outstanding Permittivity and Initial Permeability | Zendy

Zheng Hui | Zendy; Dong Yanling | Zendy; Wang Xin | Zendy; Weng Wenjian | Zendy; Han Gaorong | Zendy; Ma Ning | Zendy; Du Piyi | Zendy

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Super High Threshold Percolative Ferroelectric/Ferrimagnetic Composite Ceramics with Outstanding Permittivity and Initial Permeability

Author(s) -

Zheng Hui,

Dong Yanling,

Wang Xin,

Weng Wenjian,

Han Gaorong,

Ma Ning,

Du Piyi

Publication year - 2009

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200904269

Subject(s) - materials science , permittivity , ferroelectricity , ferrimagnetism , percolation threshold , ferrite (magnet) , composite number , composite material , ceramic , permeability (electromagnetism) , ferroelectric ceramics , percolation (cognitive psychology) , dielectric , magnetization , electrical resistivity and conductivity , optoelectronics , magnetic field , electrical engineering , chemistry , physics , engineering , quantum mechanics , neuroscience , membrane , biology , biochemistry

Some good percs : Ferroelectric/ferrimagnetic composite ceramics with percolation thresholds of 0.85–0.95 were obtained by an in situ sol–gel process that leads to enwrapping and separation of the conductive ferrite by a ferroelectric phase, e.g. BaTiO 3 . Such a super high threshold leads to a sharp increase in permittivity ( ε ) and initial permeability ( μ i ) with increasing ferrite fraction (see graph; NZFO=Ni 0.5 Zn 0.5 Fe 2 O 4 ).

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