title: Dielectric investigations of 0.945(Bi0.5Na0.5) TiO3-0.055BaTiO3.
abstract: Dielectric properties of 0.945(Bi(0.5)Na(0.5)) TiO(3)-0.055BaTiO(3)(BNBT5.5) (a composition close to the rhombohedral- tetragonal morphotropic phase boundary) ceramics are studied. It is shown that BNBT5.5 is a relaxor with a characteristic relaxation time that follows Vogel-Fulcher's law. The following Vogel-Fulcher parameters of the relaxation time were calculated: tau(0) = (2.0 +/- 2.4) x 10(-14) s, E/B(k) = (1620 +/- 270) K, Tau(0) = (262 +/- 9) K.
authors.affiliation: Faculty of Physics, Vilnius University, Vilnius, Lithuania. simonas.greicius@ff.vu.lt
authors.forename: Simonas
authors.initials: S
authors.lastname: Greicius
authors.forename: Juras
authors.initials: J
authors.lastname: Banys
authors.forename: Ruzhong
authors.initials: R
authors.lastname: Zuo
authors.forename: Torsten
authors.initials: T
authors.lastname: Granzow