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dc.contributor.authorSANVITO, STEFANOen
dc.date.accessioned2014-01-29T10:43:49Z
dc.date.available2014-01-29T10:43:49Z
dc.date.issued2011en
dc.date.submitted2011en
dc.identifier.citationAaron Hurley, Nadjib Baadji, and Stefano Sanvito, Perturbative approach to the Kondo effect in magnetic atoms on nonmagnetic substrates, Physical Review B, 84, 11, 2011, 115435-en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/67944
dc.descriptionPUBLISHEDen
dc.description.abstractRecent experimental advances in scanning tunneling microscopy make the measurement of the conductance spectra of isolated and magnetically coupled atoms on nonmagnetic substrates possible. Notably, these spectra are characterized by a competition between the Kondo effect and spin-flip inelastic electron tunneling. In particular they include Kondo resonances and a logarithmic enhancement of the conductance at voltages corresponding to magneticexcitations,twofeaturesthatcannotbecapturedbysecond-orderperturbationtheoryintheelectron-spin coupling. We have now derived a third-order analytic expression for the electron-spin self-energy, which can be readily used in combination with the nonequilibrium Green?s function scheme for electron transport at finite bias. We demonstrate that our method is capable of semiquantitative description of the competition between Kondo resonances and spin-flip inelastic electron tunneling at a computational cost significantly lower than that of other approaches. The examples of Co and Fe on CuN are discussed in detailen
dc.description.sponsorshipThis work is sponsored by the Irish Research Council for Science, Engineering & Technology (IRCSET). N.B. and S.S. thank the Science Foundation of Ireland (Grant No. 08/ERA/I1759) and CRANN for financial support. Compu- tational resources have been provided by the Trinity Centre for High Performance Computing (TCHPC).en
dc.format.extent115435en
dc.language.isoenen
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseries84en
dc.relation.ispartofseries11en
dc.rightsYen
dc.subjectKondo effecten
dc.titlePerturbative approach to the Kondo effect in magnetic atoms on nonmagnetic substratesen
dc.typeJournal Articleen
dc.contributor.sponsorIrish Research Council for Science and Engineering Technology (IRCSET)en
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/sanvitosen
dc.identifier.rssinternalid78841en
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.84.115435en
dc.rights.ecaccessrightsOpenAccess
dc.contributor.sponsorGrantNumberG30321en
dc.contributor.sponsorGrantNumber08/ERA/I1759en
dc.subject.TCDThemeNanoscience & Materialsen
dc.identifier.rssurihttp://prb.aps.org/abstract/PRB/v84/i11/e115435en


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