Phase Transitions in Disordered Lead Iron Niobate - X-Ray and Synchrotron Radiation Diffraction Experiments
Diffraction above room temperature, on powders and crystals of Pb(Fe0.5Nb0.5)O-3, using X-rays and synchrotron radiation, led to a novel and consistent picture of the symmetry of the phases in this disordered perovskite. The compound is a monoclinic ferroelectric at 293 K, undergoes a structural transition to another ferroelectric, tetragonal state at about 355 K and finally transforms into a cubic form at approximately 376 K. (C) 1997 Elsevier Science Ltd. [References: 23]
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Bonny, V., Bonin, M., Sciau, P., Schenk, K. J., & Chapuis, G. (1997). Phase Transitions in Disordered Lead Iron Niobate - X-Ray and Synchrotron Radiation Diffraction Experiments. Solid State Communications., 102(5), 347–352. https://doi.org/10.1016/S0038-1098(97)00022-7
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1997
102
5
347
352
May
REVIEWED
EPFL