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Article: Influence of size-dependent electrostatic energy on the ferroelectric nanodot domain structure by phase field method

TitleInfluence of size-dependent electrostatic energy on the ferroelectric nanodot domain structure by phase field method
Authors
Issue Date2009
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpd
Citation
Journal Of Physics D: Applied Physics, 2009, v. 42 n. 12 How to Cite?
AbstractA three-dimensional phase field model is proposed to study the effects of size-dependent electrostatic energy on ferroelectric nanodots at room temperature. The simulation results demonstrate that three domain structures exist in different sizes of nanodots, i.e. vortex structure, 90° domain structure and single domain. The periodic distributions of the electrostatic potential and its energy with positive and negative signs across the domain body are the main causes of the formation of the vortex structure. With decreasing nanodot size, the change in the competitiveness between the electrostatic energy and other intrinsic energies induces the formation of a 90° domain structure or a single domain. © 2009 IOP Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/59061
ISSN
2015 Impact Factor: 2.772
2015 SCImago Journal Rankings: 0.682
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaHKU716007E
0716508E
Funding Information:

Support from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project nos HKU716007E and 0716508E) is acknowledged. The authors gratefully thank Mr Kwan from the Computer Center of The University of Hong Kong for his help and suggestion on simulations.

References

 

DC FieldValueLanguage
dc.contributor.authorHong, Len_HK
dc.contributor.authorSoh, AKen_HK
dc.contributor.authorLiu, SYen_HK
dc.contributor.authorLu, Len_HK
dc.date.accessioned2010-05-31T03:42:13Z-
dc.date.available2010-05-31T03:42:13Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Physics D: Applied Physics, 2009, v. 42 n. 12en_HK
dc.identifier.issn0022-3727en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59061-
dc.description.abstractA three-dimensional phase field model is proposed to study the effects of size-dependent electrostatic energy on ferroelectric nanodots at room temperature. The simulation results demonstrate that three domain structures exist in different sizes of nanodots, i.e. vortex structure, 90° domain structure and single domain. The periodic distributions of the electrostatic potential and its energy with positive and negative signs across the domain body are the main causes of the formation of the vortex structure. With decreasing nanodot size, the change in the competitiveness between the electrostatic energy and other intrinsic energies induces the formation of a 90° domain structure or a single domain. © 2009 IOP Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpden_HK
dc.relation.ispartofJournal of Physics D: Applied Physicsen_HK
dc.titleInfluence of size-dependent electrostatic energy on the ferroelectric nanodot domain structure by phase field methoden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-3727&volume=42&spage=Art. no. 122005&epage=&date=2009&atitle=Influence+of+size-dependent+electrostatic+energy+on+the+ferroelectric+nanodot+domain+structure+by+phase+field+method+en_HK
dc.identifier.emailSoh, AK:aksoh@hkucc.hku.hken_HK
dc.identifier.authoritySoh, AK=rp00170en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/0022-3727/42/12/122005en_HK
dc.identifier.scopuseid_2-s2.0-70149109340en_HK
dc.identifier.hkuros156695en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70149109340&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume42en_HK
dc.identifier.issue12en_HK
dc.identifier.isiWOS:000266639300005-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridHong, L=23985073500en_HK
dc.identifier.scopusauthoridSoh, AK=7006795203en_HK
dc.identifier.scopusauthoridLiu, SY=16162042800en_HK
dc.identifier.scopusauthoridLu, L=26642926300en_HK

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