Structural origins of relaxor behavior in a 0.96(Bi1/2Na1/2)TiO3–0.04BaTiO3 single crystal under electric field
作者： John E. Daniels , Wook Jo , Jürgen Rödel , Daniel Rytz , Wolfgang Donner
DOI: 10.1063/1.3602316
关键词: Scattering 、 Nanoscopic scale 、 Crystallography 、 Phase (matter) 、 Condensed matter physics 、 Length scale 、 Single crystal 、 Permittivity 、 Electric field 、 Field dependence 、 Materials science
摘要: Diffuse x-ray scattering intensities from a single crystal of 0.96(Bi1/2Na1/2TiO3)–0.04(BaTiO3) have been collected at room temperature with and without application an electric field along the [100] direction. Distinct features in diffuse indicate correlations on nanometer length scale. It is shown that locally correlated planar-like structures octahedral tilt-domains within rhombohedral R3c phase are both electrically active irreversibly affected by 4.3 kV/mm. The dependence these nanoscale relaxor behavior material macroscopic permittivity measurements.
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