Compositionally driven ferroelectric phase transition in xBiInO3–(1-x)BaTiO3: a lead-free perovskite-based piezoelectric material

Datta, K.; Suard, E.; Thomas, P. A.
May 2010
Applied Physics Letters;5/31/2010, Vol. 96 Issue 22, p221902
Academic Journal
A comprehensive structural investigation has been carried out on xBiInO3–(1-x)BaTiO3, where x≤0.25, using the high resolution neutron powder diffractometer D2B at Institut Laue-Langevin, France. The room temperature structures of eight different compositions between x=0.03 and 0.25 of this solid solution have been determined through Rietveld refinement. A gradual structural phase transition has been observed as a function of composition, where the tetragonal (P4mm) structure (ferroelectric phase) has transformed into a cubic (Pm3m) structure (paraelectric phase) after passing through a region of coexisting phases. Details of the crystallographic information obtained from the refinement have been presented.


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