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Article: Temperature dependence of vortex charges in high-temperature superconductors

TitleTemperature dependence of vortex charges in high-temperature superconductors
Authors
KeywordsPhysics
Issue Date2003
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2003, v. 67 n. 22, p. 2205011-2205014 How to Cite?
AbstractUsing a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) interactions, the temperature (T) dependence of the vortex charge in high-T c superconductors is investigated by numerically solving the Bogoliubov-de Gennes equations. The strength of the induced AF order inside the vortex core is T dependent. The vortex charge could be negative when the AF order with sufficient strength is present at low temperatures. At higher temperatures, the AF order may be completely suppressed and the vortex charge becomes positive. A first-order-like transition in the T-dependent vortex charge is seen near the critical temperature T AF. For an underdoped sample, the spatial profiles of the induced spin-density wave and the charge-density wave orders could have stripelike structures at TT s. As a result, a vortex charge discontinuity occurs at T s.
Persistent Identifierhttp://hdl.handle.net/10722/43386
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, Yen_HK
dc.contributor.authorWang, ZDen_HK
dc.contributor.authorTing, CSen_HK
dc.date.accessioned2007-03-23T04:44:43Z-
dc.date.available2007-03-23T04:44:43Z-
dc.date.issued2003en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2003, v. 67 n. 22, p. 2205011-2205014en_HK
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43386-
dc.description.abstractUsing a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) interactions, the temperature (T) dependence of the vortex charge in high-T c superconductors is investigated by numerically solving the Bogoliubov-de Gennes equations. The strength of the induced AF order inside the vortex core is T dependent. The vortex charge could be negative when the AF order with sufficient strength is present at low temperatures. At higher temperatures, the AF order may be completely suppressed and the vortex charge becomes positive. A first-order-like transition in the T-dependent vortex charge is seen near the critical temperature T AF. For an underdoped sample, the spatial profiles of the induced spin-density wave and the charge-density wave orders could have stripelike structures at T<T s, and change to two-dimensional isotropic ones at T>T s. As a result, a vortex charge discontinuity occurs at T s.en_HK
dc.format.extent303459 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 and Materials Physics). Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titleTemperature dependence of vortex charges in high-temperature superconductorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=67&issue=22&spage=220501:1&epage=4&date=2003&atitle=Temperature+dependence+of+vortex+charges+in+high-temperature+superconductorsen_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.67.220501en_HK
dc.identifier.scopuseid_2-s2.0-0043207436en_HK
dc.identifier.hkuros77186-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0043207436&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume67en_HK
dc.identifier.issue22en_HK
dc.identifier.spage2205011en_HK
dc.identifier.epage2205014en_HK
dc.identifier.isiWOS:000184011600009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChen, Y=7601428042en_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK
dc.identifier.scopusauthoridTing, CS=7202187179en_HK

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