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Article: States of Local Moment Induced by Nonmagnetic Impurities in Cuprate Superconductors

TitleStates of Local Moment Induced by Nonmagnetic Impurities in Cuprate Superconductors
Authors
KeywordsPhysics
Issue Date2004
PublisherAmerican Physical Society. The Journal's web site is located at http://prl.aps.org
Citation
Physical Review Letters, 2004, v. 92 n. 7, p. 077203:1-4 How to Cite?
AbstractBy using a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) orders, the local staggered magnetization distribution due to nonmagnetic impurities in cuprate superconductors is investigated. We show that the net moment induced by a single impurity corresponds to a local spin with Sz = 0 or 1/2 depending on the strength of the AF interaction U and the impurity scattering strength . Phase diagram of versus U for the moment formation is presented. We discuss the connection of this result with the Kondo problem. When two impurities are placed at the nearest neighboring sites, the net moment is always zero, unusually robust to parameter changes. For two neighboring strong impurities, separated by a Cu-ion site, the induced net moment has Sz = 0, 1/2, or 1. ©2004 The American Physical Society
Persistent Identifierhttp://hdl.handle.net/10722/43408
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChen, Yen_HK
dc.contributor.authorTing, CSen_HK
dc.date.accessioned2007-03-23T04:45:08Z-
dc.date.available2007-03-23T04:45:08Z-
dc.date.issued2004en_HK
dc.identifier.citationPhysical Review Letters, 2004, v. 92 n. 7, p. 077203:1-4en_HK
dc.identifier.issn0031-9007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43408-
dc.description.abstractBy using a model Hamiltonian with d-wave superconductivity and competing antiferromagnetic (AF) orders, the local staggered magnetization distribution due to nonmagnetic impurities in cuprate superconductors is investigated. We show that the net moment induced by a single impurity corresponds to a local spin with Sz = 0 or 1/2 depending on the strength of the AF interaction U and the impurity scattering strength . Phase diagram of versus U for the moment formation is presented. We discuss the connection of this result with the Kondo problem. When two impurities are placed at the nearest neighboring sites, the net moment is always zero, unusually robust to parameter changes. For two neighboring strong impurities, separated by a Cu-ion site, the induced net moment has Sz = 0, 1/2, or 1. ©2004 The American Physical Societyen_HK
dc.format.extent592694 bytes-
dc.format.extent25088 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://prl.aps.orgen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review Letters. Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titleStates of Local Moment Induced by Nonmagnetic Impurities in Cuprate Superconductorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-9007&volume=92&issue=7&spage=077203:1&epage=4&date=2004&atitle=States+of+Local+Moment+Induced+by+Nonmagnetic+Impurities+in+Cuprate+Superconductorsen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevLett.92.077203en_HK
dc.identifier.hkuros85630-
dc.identifier.isiWOS:000189139500050-

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