Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation

In this work, we used Monte Carlo simulation to investigate the uniaxial stress dependence of the relaxor dielectric properties. The Metropolis algorithm and the spin glass type interaction were used in updating the local polarizations (representing the polar nano-regions). The exchange interaction...

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Main Authors: Yongyut Laosiritaworn, Rattikorn Yimnirun, Ruyan Guo, Amar S. Bhalla
Format: Book Series
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/50859
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-508592018-09-04T04:48:52Z Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation Yongyut Laosiritaworn Rattikorn Yimnirun Ruyan Guo Amar S. Bhalla Engineering Materials Science In this work, we used Monte Carlo simulation to investigate the uniaxial stress dependence of the relaxor dielectric properties. The Metropolis algorithm and the spin glass type interaction were used in updating the local polarizations (representing the polar nano-regions). The exchange interaction in the spin glass Hamiltonian was assumed to be stress dependent via the strain. From the results, the frequency dependence of the dielectric permittivity were found, where, at high enough stress, the dielectric permittivity decreases with increasing stresses in qualitatively good agreement with experiments. In addition, from the modified Curie-Weiss law, all γ's stay close to 2. Therefore, this implies the frequency dispersion universality of the relaxor system under loading conditions. © (2010) Trans Tech Publications. 2018-09-04T04:46:37Z 2018-09-04T04:46:37Z 2010-02-08 Book Series 10139826 2-s2.0-75749147982 10.4028/www.scientific.net/KEM.421-422.227 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=75749147982&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50859
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
spellingShingle Engineering
Materials Science
Yongyut Laosiritaworn
Rattikorn Yimnirun
Ruyan Guo
Amar S. Bhalla
Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation
description In this work, we used Monte Carlo simulation to investigate the uniaxial stress dependence of the relaxor dielectric properties. The Metropolis algorithm and the spin glass type interaction were used in updating the local polarizations (representing the polar nano-regions). The exchange interaction in the spin glass Hamiltonian was assumed to be stress dependent via the strain. From the results, the frequency dependence of the dielectric permittivity were found, where, at high enough stress, the dielectric permittivity decreases with increasing stresses in qualitatively good agreement with experiments. In addition, from the modified Curie-Weiss law, all γ's stay close to 2. Therefore, this implies the frequency dispersion universality of the relaxor system under loading conditions. © (2010) Trans Tech Publications.
format Book Series
author Yongyut Laosiritaworn
Rattikorn Yimnirun
Ruyan Guo
Amar S. Bhalla
author_facet Yongyut Laosiritaworn
Rattikorn Yimnirun
Ruyan Guo
Amar S. Bhalla
author_sort Yongyut Laosiritaworn
title Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation
title_short Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation
title_full Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation
title_fullStr Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation
title_full_unstemmed Stress dependence of dielectric properties in relaxor ferroelectrics: Monte Carlo investigation
title_sort stress dependence of dielectric properties in relaxor ferroelectrics: monte carlo investigation
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=75749147982&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50859
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