skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Modified Johnson model for ferroelectric lead lanthanum zirconate titanate at very high fields and below Curie temperature.

Abstract

A modified Johnson model is proposed to describe the nonlinear field dependence of the dielectric constant ({var_epsilon}-E loop) in ferroelectric materials below the Curie temperature. This model describes the characteristic ferroelectric 'butterfly' shape observed in typical {var_epsilon}-E loops. The predicted nonlinear behavior agreed well with the measured values in both the low- and high-field regions for lead lanthanum zirconate titanate films. The proposed model was also validated at different temperatures below the ferroelectric-to-paraelectric Curie point. The anharmonic coefficient in the model decreased from 6.142 x 10{sup -19} cm{sup 2}/V{sup 2} to 2.039 x 10{sup -19} cm{sup 2}/V{sup 2} when the temperature increased from 25 C to 250 C.

Authors:
; ; ; ;  [1]
  1. Energy Systems
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1033488
Report Number(s):
ANL/ES/JA-71840
Journal ID: ISSN 0003-6951; APPLAB; TRN: US201202%%792
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
ENGLISH
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CURIE POINT; DATA; FERROELECTRIC MATERIALS; LANTHANUM; PERMITTIVITY; SHAPE; TITANATES; ZIRCONATES

Citation Formats

Narayanan, M, Tong, S, Ma, B, Liu, S, and Balachandran, U. Modified Johnson model for ferroelectric lead lanthanum zirconate titanate at very high fields and below Curie temperature.. United States: N. p., 2012. Web. doi:10.1063/1.3676668.
Narayanan, M, Tong, S, Ma, B, Liu, S, & Balachandran, U. Modified Johnson model for ferroelectric lead lanthanum zirconate titanate at very high fields and below Curie temperature.. United States. https://doi.org/10.1063/1.3676668
Narayanan, M, Tong, S, Ma, B, Liu, S, and Balachandran, U. 2012. "Modified Johnson model for ferroelectric lead lanthanum zirconate titanate at very high fields and below Curie temperature.". United States. https://doi.org/10.1063/1.3676668.
@article{osti_1033488,
title = {Modified Johnson model for ferroelectric lead lanthanum zirconate titanate at very high fields and below Curie temperature.},
author = {Narayanan, M and Tong, S and Ma, B and Liu, S and Balachandran, U},
abstractNote = {A modified Johnson model is proposed to describe the nonlinear field dependence of the dielectric constant ({var_epsilon}-E loop) in ferroelectric materials below the Curie temperature. This model describes the characteristic ferroelectric 'butterfly' shape observed in typical {var_epsilon}-E loops. The predicted nonlinear behavior agreed well with the measured values in both the low- and high-field regions for lead lanthanum zirconate titanate films. The proposed model was also validated at different temperatures below the ferroelectric-to-paraelectric Curie point. The anharmonic coefficient in the model decreased from 6.142 x 10{sup -19} cm{sup 2}/V{sup 2} to 2.039 x 10{sup -19} cm{sup 2}/V{sup 2} when the temperature increased from 25 C to 250 C.},
doi = {10.1063/1.3676668},
url = {https://www.osti.gov/biblio/1033488}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 2,
volume = 100,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2012},
month = {Sun Jan 01 00:00:00 EST 2012}
}