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Article: Spin-resonance peak in Na xCoO 2·yH 2O superconductors: A probe of the pairing symmetry

TitleSpin-resonance peak in Na xCoO 2·yH 2O superconductors: A probe of the pairing symmetry
Authors
KeywordsPhysics
Issue Date2004
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2004, v. 70 n. 21, p. 1-4 How to Cite?
AbstractSpin dynamics in the superconducting state of the newly discovered Na xCoO 2·yH 2O superconductor with three possible pairing symmetries (p x+ip y, d+id′, and f wave) is studied theoretically on a two-dimensional triangular lattice. We find that a spin resonance peak, which is found to have a close relevance to the relative phase of the gap function and the geometry of the Fermi surface, appears in both the in-plane and the out-of-plane components of the spin susceptibility for the spin-singlet (d+id′)-wave pairing, while only in the out-of-plane (in-plane) component for the spin-triplet (p x+ip y)-wave (f-wave) pairing. We also indicate that there is no spin resonance for an s-wave pairing. These distinct features may be used to probe or determine the pairing symmetry in this compound unambiguously.
Persistent Identifierhttp://hdl.handle.net/10722/43462
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, JXen_HK
dc.contributor.authorWang, ZDen_HK
dc.date.accessioned2007-03-23T04:46:09Z-
dc.date.available2007-03-23T04:46:09Z-
dc.date.issued2004en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2004, v. 70 n. 21, p. 1-4en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43462-
dc.description.abstractSpin dynamics in the superconducting state of the newly discovered Na xCoO 2·yH 2O superconductor with three possible pairing symmetries (p x+ip y, d+id′, and f wave) is studied theoretically on a two-dimensional triangular lattice. We find that a spin resonance peak, which is found to have a close relevance to the relative phase of the gap function and the geometry of the Fermi surface, appears in both the in-plane and the out-of-plane components of the spin susceptibility for the spin-singlet (d+id′)-wave pairing, while only in the out-of-plane (in-plane) component for the spin-triplet (p x+ip y)-wave (f-wave) pairing. We also indicate that there is no spin resonance for an s-wave pairing. These distinct features may be used to probe or determine the pairing symmetry in this compound unambiguously.en_HK
dc.format.extent76885 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.titleSpin-resonance peak in Na xCoO 2·yH 2O superconductors: A probe of the pairing symmetryen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=70&issue=21&spage=212512:1&epage=4&date=2004&atitle=Spin-resonance+peak+in+NaxCoO2·yH2O+superconductors:+A+probe+of+the+pairing+symmetryen_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.70.212512en_HK
dc.identifier.scopuseid_2-s2.0-13844298824en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-13844298824&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume70en_HK
dc.identifier.issue21en_HK
dc.identifier.spage1en_HK
dc.identifier.epage4en_HK
dc.identifier.isiWOS:000226111400031-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, JX=8678926100en_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK

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