Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation

In this work, Monte Caro simulation was used to investigate the dynamic hysteresis behavior of 2 dimensional DIFFOUR modelwith varying field amplitude, field frequency and temperature over extensive ranges. Metropolis algorithm and Ising spins with variable magnitude were used in the simulation. The...

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Main Author: Laosiritaworn Y.
Format: Conference or Workshop Item
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-79960746965&partnerID=40&md5=c847aec847c5cb3073139b0b825c43bc
http://cmuir.cmu.ac.th/handle/6653943832/6495
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-64952014-08-30T03:24:17Z Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation Laosiritaworn Y. In this work, Monte Caro simulation was used to investigate the dynamic hysteresis behavior of 2 dimensional DIFFOUR modelwith varying field amplitude, field frequency and temperature over extensive ranges. Metropolis algorithm and Ising spins with variable magnitude were used in the simulation. The period average polarization was used as a dynamic order parameter in specifying dynamic ordered and disordered states. Fourth order cumulant of the period average polarization was then used to extract the dynamic critical temperature for constructing the dynamic phase diagram. It was found that the dynamic phase transition curves strongly depend on the field frequency. At higher frequency, the system requires higher level of field amplitude (electrical driving work) or higher environmental temperatures (thermal fluctuation) for a transition from dynamic ferroelectric to dynamic paraelectric phases. Consequently, the hysteresis shape at fixed temperature and field amplitude can be of either asymmetric or symmetric depending on the field frequency. This work therefore illustrates prominent and interesting behavior of the ferroelectric system under the perturbation of external field and temperature. Copyright © Taylor &Francis Group, LLC. 2014-08-30T03:24:17Z 2014-08-30T03:24:17Z 2011 Conference Paper 150193 10.1080/00150193.2011.577298 85651 FEROA http://www.scopus.com/inward/record.url?eid=2-s2.0-79960746965&partnerID=40&md5=c847aec847c5cb3073139b0b825c43bc http://cmuir.cmu.ac.th/handle/6653943832/6495 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description In this work, Monte Caro simulation was used to investigate the dynamic hysteresis behavior of 2 dimensional DIFFOUR modelwith varying field amplitude, field frequency and temperature over extensive ranges. Metropolis algorithm and Ising spins with variable magnitude were used in the simulation. The period average polarization was used as a dynamic order parameter in specifying dynamic ordered and disordered states. Fourth order cumulant of the period average polarization was then used to extract the dynamic critical temperature for constructing the dynamic phase diagram. It was found that the dynamic phase transition curves strongly depend on the field frequency. At higher frequency, the system requires higher level of field amplitude (electrical driving work) or higher environmental temperatures (thermal fluctuation) for a transition from dynamic ferroelectric to dynamic paraelectric phases. Consequently, the hysteresis shape at fixed temperature and field amplitude can be of either asymmetric or symmetric depending on the field frequency. This work therefore illustrates prominent and interesting behavior of the ferroelectric system under the perturbation of external field and temperature. Copyright © Taylor &Francis Group, LLC.
format Conference or Workshop Item
author Laosiritaworn Y.
spellingShingle Laosiritaworn Y.
Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation
author_facet Laosiritaworn Y.
author_sort Laosiritaworn Y.
title Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation
title_short Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation
title_full Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation
title_fullStr Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation
title_full_unstemmed Frequency dependence of the ferroelectric-hysteresis phase-diagram: Monte carlo investigation
title_sort frequency dependence of the ferroelectric-hysteresis phase-diagram: monte carlo investigation
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-79960746965&partnerID=40&md5=c847aec847c5cb3073139b0b825c43bc
http://cmuir.cmu.ac.th/handle/6653943832/6495
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