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Electrostatic coupling and interface intermixing in ferroelectric superlattices

A thermodynamic model is developed to study electrostatic coupling and interface intermixing in superlattices comprising alternate layers of ferroelectrics and paraelectrics. Interface intermixing leads to inhomogeneous internal electric field and polarization in superlattices. The spatial distribut...

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Main Authors: Chew, Khian Hooi, Iwata, M., Lim, K.G., Ong, L.H.
Format: Article
Language:English
Published: 2012
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/8238/1/Lim-2012-Electrostatic_coupli.pdf
http://eprints.um.edu.my/8238/
http://iopscience.iop.org/0295-5075/99/4/46004/pdf/0295-5075_99_4_46004.pdf
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spelling my.um.eprints.82382019-08-27T07:37:32Z http://eprints.um.edu.my/8238/ Electrostatic coupling and interface intermixing in ferroelectric superlattices Chew, Khian Hooi Iwata, M. Lim, K.G. Ong, L.H. QC Physics A thermodynamic model is developed to study electrostatic coupling and interface intermixing in superlattices comprising alternate layers of ferroelectrics and paraelectrics. Interface intermixing leads to inhomogeneous internal electric field and polarization in superlattices. The spatial distribution of polarization extends into the layer over a distance governed by its correlation length. Periodic modulation of the internal electric field and polarization in superlattices are correlated. Interface intermixing enhances the depolarization field of superlattices; however, it has a negligible effect on polarization and transition temperature. The internal electric field, originating from the electrostatic coupling between ferroelectric layers, plays a dominant role in determining the properties of superlattices. Copyright (C) EPLA, 2012 2012 Article PeerReviewed application/pdf en http://eprints.um.edu.my/8238/1/Lim-2012-Electrostatic_coupli.pdf Chew, Khian Hooi and Iwata, M. and Lim, K.G. and Ong, L.H. (2012) Electrostatic coupling and interface intermixing in ferroelectric superlattices. Epl, 99 (4). ISSN 0295-5075 http://iopscience.iop.org/0295-5075/99/4/46004/pdf/0295-5075_99_4_46004.pdf 10.1209/0295-5075/99/46004
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic QC Physics
spellingShingle QC Physics
Chew, Khian Hooi
Iwata, M.
Lim, K.G.
Ong, L.H.
Electrostatic coupling and interface intermixing in ferroelectric superlattices
description A thermodynamic model is developed to study electrostatic coupling and interface intermixing in superlattices comprising alternate layers of ferroelectrics and paraelectrics. Interface intermixing leads to inhomogeneous internal electric field and polarization in superlattices. The spatial distribution of polarization extends into the layer over a distance governed by its correlation length. Periodic modulation of the internal electric field and polarization in superlattices are correlated. Interface intermixing enhances the depolarization field of superlattices; however, it has a negligible effect on polarization and transition temperature. The internal electric field, originating from the electrostatic coupling between ferroelectric layers, plays a dominant role in determining the properties of superlattices. Copyright (C) EPLA, 2012
format Article
author Chew, Khian Hooi
Iwata, M.
Lim, K.G.
Ong, L.H.
author_facet Chew, Khian Hooi
Iwata, M.
Lim, K.G.
Ong, L.H.
author_sort Chew, Khian Hooi
title Electrostatic coupling and interface intermixing in ferroelectric superlattices
title_short Electrostatic coupling and interface intermixing in ferroelectric superlattices
title_full Electrostatic coupling and interface intermixing in ferroelectric superlattices
title_fullStr Electrostatic coupling and interface intermixing in ferroelectric superlattices
title_full_unstemmed Electrostatic coupling and interface intermixing in ferroelectric superlattices
title_sort electrostatic coupling and interface intermixing in ferroelectric superlattices
publishDate 2012
url http://eprints.um.edu.my/8238/1/Lim-2012-Electrostatic_coupli.pdf
http://eprints.um.edu.my/8238/
http://iopscience.iop.org/0295-5075/99/4/46004/pdf/0295-5075_99_4_46004.pdf
_version_ 1643688255079579648
score 13.222552

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