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Article: Extended Hubbard model of superconductivity and charge-density-waves in the layered 2H transition metal dichalcogenides

TitleExtended Hubbard model of superconductivity and charge-density-waves in the layered 2H transition metal dichalcogenides
Authors
KeywordsPhysics
Issue Date2006
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2006, v. 74 n. 21 How to Cite?
AbstractBased on an extended Hubbard model and a simplified version of the fluctuation exchange (FLEX) approximation, we explore the charge-density wave (CDW) and superconductivity in the layered transition metal dichalcogenides (TMDs). A quantitative analysis on a simplified model of the 2H-Ta S2 is presented. It is demonstrated that the CDW may originate from a combined effect of the scattering between flat bands and an intrinsic property of the off-site Coulomb repulsions. Moreover, the effect of the off-site Coulomb repulsion on the competition of the CDW and superconductivity is elaborated. © 2006 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/45274
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYao, ZJen_HK
dc.contributor.authorLi, JXen_HK
dc.contributor.authorWang, ZDen_HK
dc.date.accessioned2007-10-30T06:21:30Z-
dc.date.available2007-10-30T06:21:30Z-
dc.date.issued2006en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2006, v. 74 n. 21en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/45274-
dc.description.abstractBased on an extended Hubbard model and a simplified version of the fluctuation exchange (FLEX) approximation, we explore the charge-density wave (CDW) and superconductivity in the layered transition metal dichalcogenides (TMDs). A quantitative analysis on a simplified model of the 2H-Ta S2 is presented. It is demonstrated that the CDW may originate from a combined effect of the scattering between flat bands and an intrinsic property of the off-site Coulomb repulsions. Moreover, the effect of the off-site Coulomb repulsion on the competition of the CDW and superconductivity is elaborated. © 2006 The American Physical Society.en_HK
dc.format.extent171748 bytes-
dc.format.extent5669 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
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.titleExtended Hubbard model of superconductivity and charge-density-waves in the layered 2H transition metal dichalcogenidesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=74&issue=21&spage=212507:1&epage=4&date=2006&atitle=Extended+hubbard+model+of+superconductivity+and+charge-density-waves+in+the+layered+2h+transition+metal+dichalcogenidesen_HK
dc.identifier.emailYao, ZJ: zjyao@hku.hken_HK
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_HK
dc.identifier.authorityYao, ZJ=rp00828en_HK
dc.identifier.authorityWang, ZD=rp00802en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.74.212507en_HK
dc.identifier.scopuseid_2-s2.0-33846376757en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846376757&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume74en_HK
dc.identifier.issue21en_HK
dc.identifier.isiWOS:000243195500020-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYao, ZJ=24172115800en_HK
dc.identifier.scopusauthoridLi, JX=8678926100en_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK

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