RELATIONSHIP BETWEEN LINEAR AND QUADRATIC ELECTRO-OPTIC COEFFICIENTS IN LiNbO3, LiTaO3, AND OTHER OXYGEN-OCTAHEDRA FERROELECTRICS BASED ON DIRECT MEASUREMENT OF SPONTANEOUS POLARIZATION
- 15 March 1968
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 12 (6), 209-211
- https://doi.org/10.1063/1.1651955
Abstract
The spontaneous polarizations in LiNbO3, LiTaO3, and Ba2NaNb5O15 have been measured directly at room temperature by a field reversal method and found to be Ps (LiNbO3) = 0.71 C/m2, Ps (LiTaO3) = 0.50 C/m2, and Ps (Ba2NaNb5O15) = 0.40 C/m2. Using these values we show that the linear electro‐optic effect in these materials is related fundamentally to a biased quadratic effect associated with each BO6 octahedron. Based on this result, predictions are made of the spontaneous polarization in other oxygen‐octahedra ferroelectrics.Keywords
This publication has 17 references indexed in Scilit:
- TEMPERATURE DEPENDENCE AND MODEL OF THE ELECTRO-OPTIC EFFECT IN LiNbO3Applied Physics Letters, 1967
- Ferroelectric lithium tantalate—1. single crystal X-ray diffraction study at 24°CJournal of Physics and Chemistry of Solids, 1967
- Ionic displacements and spontaneous polarization in displacive ferroelectricsSolid State Communications, 1967
- NMR Study of Ferroelectric LiNbO3 and LiTaO3. IThe Journal of Chemical Physics, 1967
- Pyroelectricity and Spontaneous Polarization in LiNbO3Journal of Applied Physics, 1966
- Ferroelectric lithium niobate. 3. Single crystal X-ray diffraction study at 24°CJournal of Physics and Chemistry of Solids, 1966
- ELECTROOPTIC COEFFICIENTS AND ELASTIC-WAVE PROPAGATION IN SINGLE-DOMAIN FERROELECTRIC LITHIUM TANTALATEApplied Physics Letters, 1966
- FERROELECTRIC BEHAVIOR OF LITHIUM NIOBATEApplied Physics Letters, 1965
- Direct Observation of Antiparallel Domains During Polarization Reversal in Single-Crystal Barium TitanatePhysical Review Letters, 1959
- Ferroelectricity and crystal structure. IIActa Crystallographica, 1954