000074807 001__ 74807
000074807 005__ 20200117221648.0
000074807 0247_ $$2doi$$a10.1103/PhysRevB.97.235442
000074807 0248_ $$2sideral$$a107123
000074807 037__ $$aART-2018-107123
000074807 041__ $$aeng
000074807 100__ $$0(orcid)0000-0003-4180-0752$$aMoro-Lagares, M.
000074807 245__ $$aQuantifying the leading role of the surface state in the Kondo effect of Co/Ag(111)
000074807 260__ $$c2018
000074807 5060_ $$aAccess copy available to the general public$$fUnrestricted
000074807 5203_ $$aUsing a combination of scanning tunneling spectroscopy and atomic lateral manipulation, we obtained a systematic variation of the Kondo temperature T-K of Co atoms on Ag(111) as a function of the surface-state contribution to the total density of states at the atom adsorption site rho(s) . By sampling the T-K of a Co atom on positions where rho(s) was spatially resolved beforehand, we obtain a nearly linear relationship between the magnitudes. We interpret the data on the basis of an Anderson model including orbital and spin degrees of freedom [SU(4)] in good agreement with the experimental findings. The fact that the onset of the surface band is near the Fermi level is crucial to finding the observed linear behavior. In light of this model, the quantitative analysis of the experimental data evidences that at least a quarter of the coupling of Co impurities with extended states takes place through the hybridization to surface states. This result is of fundamental relevance in the understanding of Kondo screening of magnetic impurities on noble-metal surfaces, where bulk and surface electronic states coexist.
000074807 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000074807 592__ $$a1.502$$b2018
000074807 593__ $$aElectronic, Optical and Magnetic Materials$$c2018$$dQ1
000074807 593__ $$aCondensed Matter Physics$$c2018$$dQ1
000074807 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000074807 700__ $$aFernandez, J.
000074807 700__ $$aRoura-Bas, P.
000074807 700__ $$0(orcid)0000-0003-0681-8260$$aIbarra, M.R.$$uUniversidad de Zaragoza
000074807 700__ $$aAligia, A.A.
000074807 700__ $$0(orcid)0000-0002-3260-9641$$aSerrate, D.$$uUniversidad de Zaragoza
000074807 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000074807 773__ $$g97, 23 (2018), 235442 [9 pp]$$pPhys. Rev. B$$tPhysical Review B$$x2469-9950
000074807 8564_ $$s836514$$uhttps://zaguan.unizar.es/record/74807/files/texto_completo.pdf$$yVersión publicada
000074807 8564_ $$s27372$$uhttps://zaguan.unizar.es/record/74807/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000074807 909CO $$ooai:zaguan.unizar.es:74807$$particulos$$pdriver
000074807 951__ $$a2020-01-17-22:07:26
000074807 980__ $$aARTICLE