Premium
Dielectric Properties and Relaxation in (1− x )BiScO 3 – x Ba(Mg 1/3 Nb 2/3 )O 3 Solid Solutions
Author(s) -
Kwon DoKyun,
Randall Clive A.,
Shrout Thomas R.,
Lanagan Michael T.
Publication year - 2004
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2004.01088.x
Subject(s) - dielectric , materials science , arrhenius equation , relaxation (psychology) , dielectric loss , cole–cole equation , microwave , permittivity , arrhenius plot , solid solution , condensed matter physics , analytical chemistry (journal) , thermodynamics , activation energy , chemistry , physics , optoelectronics , psychology , social psychology , chromatography , quantum mechanics , metallurgy
The dielectric properties and frequency dispersion associated with a dielectric relaxation were evaluated within the perovskite (1− x )BiScO 3 – x Ba(Mg 1/3 Nb 2/3 )O 3 solid solution systems (0.7 ≤ x ≤ 1). With increasing BiScO 3 , the room‐temperature dielectric permittivity at low frequency (100 Hz) increased up to 115 at x = 0.7, and a dielectric relaxation phenomenon was evident. Relaxation parameters were analyzed using several Arrhenius‐type equations, and the microwave dielectric property measurement using rectangular wave‐guide method enabled confirmation of the extrapolated value of the Arrhenius plot. The result of the microwave dielectric property measurement was also checked with J ‐function fitting based on the frequency‐dependent Gaussian distribution of the associated dielectric loss data at low frequency.