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Article: Order parameter and current-phase relation in Josephson junctions composed of g+s-wave superconductors

TitleOrder parameter and current-phase relation in Josephson junctions composed of g+s-wave 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. 68 n. 18, p. 184516:1-7 How to Cite?
AbstractBased on the analyses of bulk sensitive experimental data on penetration depths, Raman spectra, electron photoemission spectra, etc., G. M. Zhao concluded in a recent paper [Phys. Rev. B 64, 024503 (2001)] that the symmetry of high-Tc superconductors belongs to the g+s-wave type. To explore the common and uncommon features of the g+s-wave pairing state with respect to the d-wave pairing state, both superconductor-insulator-superconductor junction and superconductor-normal metal-superconductor junction have been studied self-consistently in this paper using the quasiclassical theory. The current phase relation for g+s-wave superconductors Δ(s,θ)=Δ0(s+cos 4θ) is investigated systematically as functions of s-wave component, crystal orientation angle β, as well as roughness ρ of the interface layer. Our results show that there exists a critical βC for a given s and ρ so that the current phase relation approaches asymptotically to I(φ)=ICsin(2φ) from I(φ)=ICsin(φ) as β→βC. The order parameter and βC-s relation are calculated self-consistently as interface roughness varies. Our results are compared with their counterparts in Josephson junctions with the d-wave pairing state obtained using a similar method.
Persistent Identifierhttp://hdl.handle.net/10722/43405
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, ZXen_HK
dc.contributor.authorZhang, WYen_HK
dc.contributor.authorWang, ZDen_HK
dc.date.accessioned2007-03-23T04:45:05Z-
dc.date.available2007-03-23T04:45:05Z-
dc.date.issued2003en_HK
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2003, v. 68 n. 18, p. 184516:1-7en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43405-
dc.description.abstractBased on the analyses of bulk sensitive experimental data on penetration depths, Raman spectra, electron photoemission spectra, etc., G. M. Zhao concluded in a recent paper [Phys. Rev. B 64, 024503 (2001)] that the symmetry of high-Tc superconductors belongs to the g+s-wave type. To explore the common and uncommon features of the g+s-wave pairing state with respect to the d-wave pairing state, both superconductor-insulator-superconductor junction and superconductor-normal metal-superconductor junction have been studied self-consistently in this paper using the quasiclassical theory. The current phase relation for g+s-wave superconductors Δ(s,θ)=Δ0(s+cos 4θ) is investigated systematically as functions of s-wave component, crystal orientation angle β, as well as roughness ρ of the interface layer. Our results show that there exists a critical βC for a given s and ρ so that the current phase relation approaches asymptotically to I(φ)=ICsin(2φ) from I(φ)=ICsin(φ) as β→βC. The order parameter and βC-s relation are calculated self-consistently as interface roughness varies. Our results are compared with their counterparts in Josephson junctions with the d-wave pairing state obtained using a similar method.en_HK
dc.format.extent120131 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.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.titleOrder parameter and current-phase relation in Josephson junctions composed of g+s-wave superconductorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=68&issue=18&spage=184516:1&epage=7&date=2003&atitle=Order+parameter+and+current-phase+relation+in+Josephson+junctions+composed+of+g+s-wave+superconductorsen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.68.184516en_HK
dc.identifier.scopuseid_2-s2.0-0345802890-
dc.identifier.hkuros85123-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0345802890&selection=ref&src=s&origin=recordpage-
dc.identifier.isiWOS:000187004300078-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridWang, Z=7410050979-
dc.identifier.scopusauthoridZhang, W=7409424869-
dc.identifier.scopusauthoridWang, Z=14828459100-

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