Journal Article

PreJuSER-5164

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Finite temperature magnetism in Gd : evidence against a stoner behavior

Maiti, K.FZJ* ; Malagoli, M. C.FZJ* ; Dallmeyer, R. J.FZJ* ; Carbone, C.FZJ*

2002
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/897  doi:10.1103/PhysRevLett.88.167205

Abstract: The temperature dependence of the rare-earth valence bands has been regarded as a realization of the Stoner behavior. The exchange splitting of the electronic states appears to scale as the magnetic order parameter for T < T-C and to vanish at T = T-C. We report here a spin-resolved photoemission study on the evolution of Gd bulk bands for 0.5 <= T/T-C <= 1. The spin-polarized spectral line shapes display a complex temperature dependence, which clearly contrasts with the interpretation of previous experimental results. The spin-resolved photoemission data demonstrate the inadequacy of the Stoner model to the description of magnetism in rare earths.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Elektronische Eigenschaften (IFF-IEE)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2002
Notes: This version is available at the following Publisher URL: http://prl.aps.org

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