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Article: Vortex structure transformation of BaTiO3 nanoparticles through the gradient function
Title | Vortex structure transformation of BaTiO3 nanoparticles through the gradient function | ||||||
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Authors | |||||||
Keywords | Physics engineering | ||||||
Issue Date | 2009 | ||||||
Publisher | American Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp | ||||||
Citation | Journal of Applied Physics, 2009, v. 106 n. 2, article no. 024111 How to Cite? | ||||||
Abstract | Phase field method has been used to simulate the vortex structures in BaTiO3 (BTO) nanoparticles. Through the modulation of the gradient coefficients, vortices are found to transform in a path of monoclinic M A →orthorhombic→monoclinic MC →tetragonal. Although the gradient coefficients vary significantly, the change in gradient energy is remarkably small. The simulation results show that the rotation and magnitude reduction in polarization dipoles increase the bulk energy, which induces the vortex transformation process in BTO nanoparticles. Moreover, the existence of monoclinic phase is a necessity to start the polarization rotation as well as the vortex transformation process. © 2009 American Institute of Physics. | ||||||
Persistent Identifier | http://hdl.handle.net/10722/65475 | ||||||
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 0.649 | ||||||
ISI Accession Number ID |
Funding Information: Support from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project Nos. HKU716007E and 716508E) is acknowledged. The authors gratefully acknowledge the support of the Computer Center of The University of Hong Kong. | ||||||
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hong, L | en_HK |
dc.contributor.author | Soh, AK | en_HK |
dc.contributor.author | Liu, SY | en_HK |
dc.contributor.author | Lu, L | en_HK |
dc.date.accessioned | 2010-08-10T03:10:09Z | - |
dc.date.available | 2010-08-10T03:10:09Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | Journal of Applied Physics, 2009, v. 106 n. 2, article no. 024111 | - |
dc.identifier.issn | 0021-8979 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/65475 | - |
dc.description.abstract | Phase field method has been used to simulate the vortex structures in BaTiO3 (BTO) nanoparticles. Through the modulation of the gradient coefficients, vortices are found to transform in a path of monoclinic M A →orthorhombic→monoclinic MC →tetragonal. Although the gradient coefficients vary significantly, the change in gradient energy is remarkably small. The simulation results show that the rotation and magnitude reduction in polarization dipoles increase the bulk energy, which induces the vortex transformation process in BTO nanoparticles. Moreover, the existence of monoclinic phase is a necessity to start the polarization rotation as well as the vortex transformation process. © 2009 American Institute of Physics. | en_HK |
dc.language | eng | - |
dc.publisher | American Institute of Physics. The Journal's web site is located at http://jap.aip.org/jap/staff.jsp | en_HK |
dc.relation.ispartof | Journal of Applied Physics | en_HK |
dc.rights | Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics, 2009, v. 106 n. 2, article no. 024111 and may be found at https://doi.org/10.1063/1.3186038 | - |
dc.subject | Physics engineering | - |
dc.title | Vortex structure transformation of BaTiO3 nanoparticles through the gradient function | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-8979&volume=106&issue=2 article no. 024111&spage=&epage=&date=2009&atitle=Vortex+structure+transformation+of+BaTiO3+nanoparticles+through+the+gradient+function | - |
dc.identifier.email | Soh, AK:aksoh@hkucc.hku.hk | en_HK |
dc.identifier.authority | Soh, AK=rp00170 | en_HK |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1063/1.3186038 | en_HK |
dc.identifier.scopus | eid_2-s2.0-68249144530 | en_HK |
dc.identifier.hkuros | 171056 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-68249144530&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 106 | en_HK |
dc.identifier.issue | 2 | en_HK |
dc.identifier.spage | article no. 024111 | - |
dc.identifier.epage | article no. 024111 | - |
dc.identifier.isi | WOS:000268613000119 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Hong, L=23985073500 | en_HK |
dc.identifier.scopusauthorid | Soh, AK=7006795203 | en_HK |
dc.identifier.scopusauthorid | Liu, SY=16162042800 | en_HK |
dc.identifier.scopusauthorid | Lu, L=26642926300 | en_HK |
dc.identifier.issnl | 0021-8979 | - |