Numéro |
J. Physique Lett.
Volume 46, Numéro 7, avril 1985
|
|
---|---|---|
Page(s) | 335 - 339 | |
DOI | https://doi.org/10.1051/jphyslet:01985004607033500 |
J. Physique Lett. 46, 335-339 (1985)
DOI: 10.1051/jphyslet:01985004607033500
Department of Physics, Indiana University, Bloomington, Indiana 47405, U.S.A.
7780D - Ferroelectric domain structure and effects: hysteresis.
7820D - Optical constants and parameters condensed matter.
7820H - Piezo , elasto and acousto optical effects: photoacoustic effect condensed matter.
7820J - Electro optical effects condensed matter.
Key words
barium compounds -- dislocation motion -- electro optical effects -- ferroelectric materials -- Kerr electro optical effect -- photoelasticity -- refractive index -- electrooptic coefficients -- dislocations oscillations -- BaTiO sub 3 -- ferroelectric domains -- quadratic Kerr effect -- refractive index -- photoelastic coefficients
DOI: 10.1051/jphyslet:01985004607033500
The optical behaviour of slightly ferroelectric BaTiO3
F.J. BartisDepartment of Physics, Indiana University, Bloomington, Indiana 47405, U.S.A.
Abstract
A fluctuating field is produced by the oscillations of dislocations relative to the small ferroelectric domains at their sides. Through the quadratic Kerr effect this field causes a T/(T - T0 ) deviation of the refractive index from its linear variation at high temperature and T/(T - T0)2 anomalies of the electrooptic and photoelastic coefficients.
Résumé
Un champ fluctuant est produit par les oscillations des dislocations relatives aux petits domaines ferroélectriques sur leurs côtés. Par l'effet Kerr quadratique ce champ cause une déviation en T/(T - T0) de l'indice de réfraction par rapport à sa variation linéaire à haute température et des anomalies en T/(T - T0)2 des coefficients photoélastiques et électrooptiques.
7780D - Ferroelectric domain structure and effects: hysteresis.
7820D - Optical constants and parameters condensed matter.
7820H - Piezo , elasto and acousto optical effects: photoacoustic effect condensed matter.
7820J - Electro optical effects condensed matter.
Key words
barium compounds -- dislocation motion -- electro optical effects -- ferroelectric materials -- Kerr electro optical effect -- photoelasticity -- refractive index -- electrooptic coefficients -- dislocations oscillations -- BaTiO sub 3 -- ferroelectric domains -- quadratic Kerr effect -- refractive index -- photoelastic coefficients