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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleCo-Substitution Effects on the Fe Valence in the BaFe2As2 Superconducting Compound: A Study of Hard X-Ray Absorption Spectroscopypt_BR
dc.contributor.authorBittar, EMpt_BR
dc.contributor.authorAdriano, Cpt_BR
dc.contributor.authorGaritezi, TMpt_BR
dc.contributor.authorRosa, PFSpt_BR
dc.contributor.authorMendonca-Ferreira, Lpt_BR
dc.contributor.authorGarcia, Fpt_BR
dc.contributor.authorAzevedo, GDpt_BR
dc.contributor.authorPagliuso, PGpt_BR
dc.contributor.authorGranado, Ept_BR
unicamp.authorBittar, E. M. Garcia, F. Granado, E. Lab Nacl Luz Sincrotron, BR-13083970 Campinas, SP, Brazilpt_BR
unicamp.authorAdriano, C. Garitezi, T. M. Rosa, P. F. S. Pagliuso, P. G. Granado, E. Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazilpt_BR
unicamp.authorMendonca-Ferreira, L. Univ Fed Pelotas UFPel, Inst Fis & Matemat, BR-96010900 Pelotas, RS, Brazilpt_BR
unicamp.authorAzevedo, G. de M. Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazilpt_BR
unicamp.authorPagliuso, P. G. Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USApt_BR
dc.subject.wosNear-edge Structurept_BR
dc.subject.wosMn K-edgept_BR
dc.description.abstractThe Fe K x-ray absorption near edge structure of BaFe2-xCoxAs2 superconductors was investigated. No appreciable alteration in shape or energy position of this edge was observed with Co substitution. This result provides experimental support to previous ab initio calculations in which the extra Co electron is concentrated at the substitute site and do not change the electronic occupation of the Fe ions. Superconductivity may emerge due to bonding modifications induced by the substitute atom that weakens the spin-density-wave ground state by reducing the Fe local moments and/or increasing the elastic energy penalty of the accompanying orthorhombic
dc.relation.ispartofPhysical Review Letterspt_BR
dc.relation.ispartofabbreviationPhys. Rev. Lett.pt_BR
dc.publisher.cityCollege Pkpt_BR
dc.publisherAmer Physical Socpt_BR 20pt_BR
dc.identifier.citationPhysical Review Letters. Amer Physical Soc, v. 107, n. 26, 2011.pt_BR
dc.sourceWeb of Sciencept_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
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