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Type: Artigo de evento
Title: La Doping Effects In The Coupling Between Localized And Itinerant Electronic States In Eufe2as2 Probed By Eu2+ Esr
Author: Garcia F.A.
Bittar E.M.
Adriano C.
Garitezi T.M.
Rettori C.
Pagliuso P.G.
Abstract: In this work we present an Electron Spin Resonance (ESR) study on La-doped EuFe2As2 aiming to further understand the coupling of localized spin states and itinerant electrons in these systems. The temperature dependence of the Eu2+ ESR linewidth, g-value and intensity was investigated for both monocrystalline and powdered samples. Our results confirm the suggestion of previous ESR experiments on the pure compound [1], that the SDW transition dramatically changes the coupling between localized and itinerant states. In addition, we found a peculiar dome like shape in the Eu2+ ESR linewidth temperature dependence for temperatures between TSDW and TN. © Published under licence by IOP Publishing Ltd.
Rights: aberto
Identifier DOI: 10.1088/1742-6596/273/1/012093
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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