6 December 2006 Polarization switching in ferroelectric crystals with defects charged under photo- or UV-excitation
Author Affiliations +
Proceedings Volume 6023, Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals; 60230P (2006) https://doi.org/10.1117/12.648211
Event: Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 2005, Alushta, Ukraine
Abstract
We have proposed the phenomenological description of dielectric hysteresis loops in ferroelectric semiconductors with impurity centers charged under photo- or UV excitation. Exactly we have modified Landau-Ginsburg approach and shown that the macroscopic state of the aforementioned inhomogeneous system can be described by three coupled equations for three order parameters. Both the experimentally observed coercive field values well below the thermodynamic one and the various hysteresis loop deformations (constricted and double loops) have been obtained in the framework of our model.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anna N. Morozovska, Anna N. Morozovska, } "Polarization switching in ferroelectric crystals with defects charged under photo- or UV-excitation", Proc. SPIE 6023, Tenth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 60230P (6 December 2006); doi: 10.1117/12.648211; https://doi.org/10.1117/12.648211
PROCEEDINGS
6 PAGES


SHARE
Back to Top