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Giant quadratic electro-optical effect during polarization switching in ultrathin ferroelectric polymer films

Abstract

The low-frequency quadratic electro-optical effect with a maximum electro-optical coefficient of g = 8 Multiplication-Sign 10{sup -19} m{sup 2}/V{sup 2} (i.e., four orders of magnitude greater than the standard high-frequency value) has been studied in thin films of ferroelectric polymer PVDF(70%)-TrFE(30%). The observed effect is related to the process of spontaneous polarization switching, during which the electron oscillators of C-F and C-H dipole groups rotate to become parallel to the applied field. As a result, the ellipsoid of the refractive index exhibits narrowing in the direction perpendicular to the field. The field dependence of the electro-optical coefficient g correlates with that of the apparent dielectric permittivity, which can be introduced under the condition of ferroelectric polarization switching. The observed electro-optical effect strongly decreases when the frequency increases up to several hundred hertz. The temperature dependence of the effect exhibits clearly pronounced hysteresis in the region of the ferroelectric phase transition.
Authors:
Blinov, L. M., E-mail: lev39blinov@gmail.com; Lazarev, V V; Palto, S P; Yudin, S G [1] 
  1. Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
Publication Date:
Apr 15, 2012
Product Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 114; Journal Issue: 4; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DIPOLES; ELECTRONS; ELECTRO-OPTICAL EFFECTS; FERROELECTRIC MATERIALS; HYSTERESIS; ORGANIC FLUORINE COMPOUNDS; OSCILLATORS; PERMITTIVITY; PHASE TRANSFORMATIONS; POLARIZATION; POLYVINYLS; REFRACTIVE INDEX; TEMPERATURE DEPENDENCE; THIN FILMS
OSTI ID:
22027880
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1063-7761; CODEN: JTPHES; TRN: US12K0191116146
Submitting Site:
USN
Size:
page(s) 691-697
Announcement Date:
Jan 24, 2013

Citation Formats

Blinov, L. M., E-mail: lev39blinov@gmail.com, Lazarev, V V, Palto, S P, and Yudin, S G. Giant quadratic electro-optical effect during polarization switching in ultrathin ferroelectric polymer films. United States: N. p., 2012. Web. doi:10.1134/S1063776112030016.
Blinov, L. M., E-mail: lev39blinov@gmail.com, Lazarev, V V, Palto, S P, & Yudin, S G. Giant quadratic electro-optical effect during polarization switching in ultrathin ferroelectric polymer films. United States. doi:10.1134/S1063776112030016.
Blinov, L. M., E-mail: lev39blinov@gmail.com, Lazarev, V V, Palto, S P, and Yudin, S G. 2012. "Giant quadratic electro-optical effect during polarization switching in ultrathin ferroelectric polymer films." United States. doi:10.1134/S1063776112030016. https://www.osti.gov/servlets/purl/10.1134/S1063776112030016.
@misc{etde_22027880,
title = {Giant quadratic electro-optical effect during polarization switching in ultrathin ferroelectric polymer films}
author = {Blinov, L. M., E-mail: lev39blinov@gmail.com, Lazarev, V V, Palto, S P, and Yudin, S G}
abstractNote = {The low-frequency quadratic electro-optical effect with a maximum electro-optical coefficient of g = 8 Multiplication-Sign 10{sup -19} m{sup 2}/V{sup 2} (i.e., four orders of magnitude greater than the standard high-frequency value) has been studied in thin films of ferroelectric polymer PVDF(70%)-TrFE(30%). The observed effect is related to the process of spontaneous polarization switching, during which the electron oscillators of C-F and C-H dipole groups rotate to become parallel to the applied field. As a result, the ellipsoid of the refractive index exhibits narrowing in the direction perpendicular to the field. The field dependence of the electro-optical coefficient g correlates with that of the apparent dielectric permittivity, which can be introduced under the condition of ferroelectric polarization switching. The observed electro-optical effect strongly decreases when the frequency increases up to several hundred hertz. The temperature dependence of the effect exhibits clearly pronounced hysteresis in the region of the ferroelectric phase transition.}
doi = {10.1134/S1063776112030016}
journal = {Journal of Experimental and Theoretical Physics}
issue = {4}
volume = {114}
journal type = {AC}
place = {United States}
year = {2012}
month = {Apr}
}