Grain and grain boundary effects in Ca 2+  doped BiFeO 3  multiferroic ceramics | Zendy

Tirupathi Patri | Zendy; Chandra Amreesh | Zendy

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Grain and grain boundary effects in Ca 2+ doped BiFeO 3 multiferroic ceramics

Author(s) -

Tirupathi Patri,

Chandra Amreesh

Publication year - 2012

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.201147597

Subject(s) - multiferroics , grain boundary , materials science , doping , condensed matter physics , ceramic , microstructure , grain size , ferroelectricity , electrical resistivity and conductivity , atmospheric temperature range , conductivity , composite material , dielectric , thermodynamics , chemistry , optoelectronics , physics , quantum mechanics

The present work reports the analysis of temperature‐dependent electrical and conductivity studies on Ca 2+ doped BiFeO 3 multiferroic ceramics in the temperature range of 300–600 K. The effect of Ca 2+ doping on the impedance and modulus behavior of BiFeO 3 lattice is discussed. The observed changes as a function of increasing Ca 2+ concentration have been explained using the change in crystal unit cell. It is also shown that the microstructure changes significantly as a function of Ca 2+ concentration. The grain and grain boundary effects in determining the impedance behavior is also reported in the paper.

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