Liu, Yun; Noren, Lasse; Studer, Andrew J; Withers, Raymond; Guo, Yiping; Li, Yongxiang; Yang, Hiu; Wang, Jian
We investigate the R3c average structure and micro-structure of the ceramic Bi 0.5Na 0.5TiO 3 (BNT) in situ under applied electric fields using diffraction techniques. Electron diffraction implies the presence of significant octahedral tilt twin disorder, corresponding to the existence of a fine scale intergrown microstructural (IGMS) 'phase' within the R3c rhombohedral average structure matrix. A careful neutron refinement suggests not only that the off-centre displacements of the cations...[Show more]
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