The characterrization of high temperature solution-grown crystals of Pb(Fe1/2Nb1/2)O3
- 1 October 1981
- journal article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 37 (1) , 547-550
- https://doi.org/10.1080/00150198108223482
Abstract
Polarization microscope studies on single crystal samples of Pb(Fe1/2Nb1/2)O3 (PFN) have been made. Thin platelets (<60 μ) show large, homogeneous ferroelectrics domains, and optical characterization shows that PFN is trigonal at room temperature and optically negative. Birefringence measurements between 4.2 and 400 K reveal that the transition to the cubic structure takes place at 383 K, in accordance with earlier work, but they also locate a previously undetected structural modification at 354 K, accompanied simultaneously by a reorientation of the index ellipsoid; both transitions manifest themselves by endothermic reactions on heating in DTA experiments. The new phase is very likely monoclinicKeywords
This publication has 3 references indexed in Scilit:
- Magnetic ordering in Pb(Fe0.5Nb0.5)O3 at 4.2 KPhysica Status Solidi (a), 1981
- Thermal studies of magnetic ferroelectrics in the system Pb(Fe0$middot$5Nb0$middot$5)O3-BiFeO3Journal of Physics D: Applied Physics, 1974
- Piezo-Optical Birefringence Modulators: New Use for a Long-Known EffectJournal of the Optical Society of America, 1969