Mean-Field Approach to Dielectric Relaxation in Giant Dielectric Constant Perovskite Ceramics | Zendy

Shanming Ke | Zendy; Peng Lin | Zendy; Haitao Huang | Zendy; Huiqing Fan | Zendy; Xierong Zeng | Zendy

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Mean-Field Approach to Dielectric Relaxation in Giant Dielectric Constant Perovskite Ceramics

Author(s) -

Shanming Ke,

Peng Lin,

Haitao Huang,

Huiqing Fan,

Xierong Zeng

Publication year - 2013

Publication title -

journal of ceramics

Language(s) - English

Resource type - Journals

eISSN - 2090-8628

pISSN - 2090-8644

DOI - 10.1155/2013/795827

Subject(s) - dielectric , polaron , relaxation (psychology) , condensed matter physics , materials science , ceramic , permittivity , perovskite (structure) , range (aeronautics) , composite material , optoelectronics , physics , chemistry , crystallography , psychology , social psychology , quantum mechanics , electron

The dielectric properties of CaCu3Ti4O3 (CCTO) and A2FeNbO6 (AFN, A = Ba, Sr, and Ca) giant dielectric constant ceramics were investigated in the frequency range from 1 Hz to 10 MHz. The relaxation properties can be perfectly described by a polaron model, indicating that the dielectric relaxation is intimately related to the hopping motion caused by localized charge carriers

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