Spontaneous birefringence of flux grown single crystals of the ferroelectric/antiferromagnetic perovskite PbFe1/2Ta1/2O3(PFT)
- 1 April 1984
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 55 (1) , 181-184
- https://doi.org/10.1080/00150198408015363
Abstract
The spontaneous birefringence, Δns, of the rhombohedral ferroelectric phase of PFT has been measured between 20K and the hitherto unknown first order transition at 210K (heating)/205K (cooling). Above that transition a weakly birefringent phase is evinced, which undergoes a second order transition to cubic at ∼ 248K. Pronounced photoconductivity occurs below room temperature. A strong reversible temperature shift (-5. 7 cm-1K-1) of the absorption edge obscures the material upon heating.Keywords
This publication has 3 references indexed in Scilit:
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- Oxygen-Octahedra Ferroelectrics. I. Theory of Electro-optical and Nonlinear optical EffectsJournal of Applied Physics, 1969
- Dielectric and Magnetic Properties of Pb(Fe1/2Ta1/2)O3Japanese Journal of Applied Physics, 1968