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Article: Vortex state and dynamics of a d-wave superconductor: Finite-element analysis

TitleVortex state and dynamics of a d-wave superconductor: Finite-element analysis
Authors
KeywordsPhysics
Issue Date1997
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 1997, v. 55 n. 17, p. 11756-11765 How to Cite?
AbstractThe finite-element method is extended to simulate the d-wave time-dependent Ginzburg-Landau equations. By utilizing this method and in the context of the (s+d)-wave pairing, we discuss the nature of a single vortex, the structure of equilibrium vortex lattices in bulk samples, the nature of vortices in finite-size samples, and most importantly the transport of the vortices. In particular, the low-field free-flux-flow resistivity turns out to obey the law of corresponding states discovered in conventional superconductors, while the high-field resistivity reveals a noticeable effect of the s-wave coupling on lifting the effective upper critical field. The flux flow near and above the depinning current in the presence of a twin boundary or random impurities also assumes a conventional behavior: The current dependence of the flux-flow resistivity can be well described by an overdamped model for a particle subject to driving and pinning forces. However, our results show a noticeable difference between the flux-flow resistivities at large currents in the presence and absence of pinning.
Persistent Identifierhttp://hdl.handle.net/10722/43199
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, ZDen_HK
dc.contributor.authorWang, QHen_HK
dc.date.accessioned2007-03-23T04:41:09Z-
dc.date.available2007-03-23T04:41:09Z-
dc.date.issued1997en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 1997, v. 55 n. 17, p. 11756-11765en_HK
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43199-
dc.description.abstractThe finite-element method is extended to simulate the d-wave time-dependent Ginzburg-Landau equations. By utilizing this method and in the context of the (s+d)-wave pairing, we discuss the nature of a single vortex, the structure of equilibrium vortex lattices in bulk samples, the nature of vortices in finite-size samples, and most importantly the transport of the vortices. In particular, the low-field free-flux-flow resistivity turns out to obey the law of corresponding states discovered in conventional superconductors, while the high-field resistivity reveals a noticeable effect of the s-wave coupling on lifting the effective upper critical field. The flux flow near and above the depinning current in the presence of a twin boundary or random impurities also assumes a conventional behavior: The current dependence of the flux-flow resistivity can be well described by an overdamped model for a particle subject to driving and pinning forces. However, our results show a noticeable difference between the flux-flow resistivities at large currents in the presence and absence of pinning.en_HK
dc.format.extent291958 bytes-
dc.format.extent45056 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review B (Condensed Matter). Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titleVortex state and dynamics of a d-wave superconductor: Finite-element analysisen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0163-1829&volume=55&issue=17&spage=11756&epage=11765&date=1997&atitle=Vortex+state+and+dynamics+of+a+d-wave+superconductor:+Finite-element+analysisen_HK
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_HK
dc.identifier.authorityWang, ZD=rp00802en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.55.11756en_HK
dc.identifier.scopuseid_2-s2.0-0000214814en_HK
dc.identifier.hkuros22617-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0000214814&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume55en_HK
dc.identifier.issue17en_HK
dc.identifier.spage11756en_HK
dc.identifier.epage11765en_HK
dc.identifier.isiWOS:A1997WY50400116-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK
dc.identifier.scopusauthoridWang, QH=7406916485en_HK

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