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Large dielectric tunability in Na 0.5 Bi 0.5 TiO 3 – x %BaTiO 3 single crystals
Author(s) -
Ge Wenwei,
Luo Chengtao,
Zhang Qinhui,
Li Jiefang,
Luo Haosu,
Viehland D.
Publication year - 2012
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201206282
Subject(s) - dielectric , materials science , ferroelectricity , electric field , permittivity , high κ dielectric , analytical chemistry (journal) , optoelectronics , chemistry , physics , chromatography , quantum mechanics
Dielectric tunability in [001] and [110] oriented Na 0.5 Bi 0.5 TiO 3 –5.6%BaTiO 3 crystals was investigated as functions of temperature and frequency. A tunability of the dielectric constant as high as 58% and 46% was obtained at room temperature under an electric field of E = 20 kV/cm applied along [001] and [110]. Our findings demonstrate that Na 0.5 Bi 0.5 TiO 3 –5.6%BaTiO 3 crystals are potential voltage‐tunable materials. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)