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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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2012
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| Online Access: | http://eprints.um.edu.my/8238/1/Lim-2012-Electrostatic_coupli.pdf |
| _version_ | 1825719508705214464 |
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| 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 |
| collection | UM |
| 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 |
| first_indexed | 2024-03-06T05:20:49Z |
| format | Article |
| id | um.eprints-8238 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:20:49Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | 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, DOI https://doi.org/10.1209/0295-5075/99/46004 <https://doi.org/10.1209/0295-5075/99/46004>. http://iopscience.iop.org/0295-5075/99/4/46004/pdf/0295-5075_99_4_46004.pdf 10.1209/0295-5075/99/46004 |
| spellingShingle | QC Physics Chew, Khian Hooi Iwata, M. Lim, K.G. Ong, L.H. Electrostatic coupling and interface intermixing in ferroelectric superlattices |
| title | 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_short | Electrostatic coupling and interface intermixing in ferroelectric superlattices |
| title_sort | electrostatic coupling and interface intermixing in ferroelectric superlattices |
| topic | QC Physics |
| url | http://eprints.um.edu.my/8238/1/Lim-2012-Electrostatic_coupli.pdf |
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