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Colossal Permittivity in Ultrafine Grain Size BaTiO 3– x and Ba 0.95 La 0.05 TiO 3– x Materials
Author(s) -
GuillemetFritsch S.,
ValdezNava Z.,
Tenailleau C.,
Lebey T.,
Durand B.,
ChaneChing J.Y.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700245
Subject(s) - materials science , permittivity , grain size , nanomaterials , barium titanate , ceramic , mineralogy , analytical chemistry (journal) , condensed matter physics , dielectric , nanotechnology , composite material , optoelectronics , physics , chemistry , chromatography
Colossal permittivity up to 10 6 at 1 KHz (0.1 < tan δ < 0.7) was achieved on 70 nm Ba 0.95 La 0.05 TiO 3– x materials. The colossal permittivit value is observed in nanomaterials displaying high concentration of charge carriers and low activation energy interfaces.