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research article
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]
Type
research article
Authors
Publication date
1997
Published in
Volume
102
Issue
5
Start page
347
End page
352
Note
May
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
March 7, 2006
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