Observation of three-dimensional bulk Fermi surfaces for a strongly correlated material by soft x-ray $hν$-dependent (700-860 eV) ARPES

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dc.creatorYano, M.
dc.creatorSekiyama, A.
dc.creatorFujiwara, H.
dc.creatorSaita, T.
dc.creatorImada, S.
dc.creatorMuro, T.
dc.creatorOnuki, Y.
dc.creatorSuga, S.
dc.date2006-04-30
dc.date.accessioned2026-07-07T07:08:40Z
dc.date.available2026-07-07T07:08:40Z
dc.descriptionThree-dimensional Fermi surfaces at a high temperature have been clarified for a strongly correlated Ce compound, ferromagnet CeRu$_2$Ge$_2$ in the paramagnetic phase, by virtue of a soft x-ray $hν$-dependent (700-860 eV) ARPES. Although the observed Fermi surfaces as well as quasiparticle dispersions are partly explained by a band-structure calculation based on a localized $4f$ model, qualitative discrepancy in experiments, between our APRES in the paramagnetic phase and de Haas-van Alphen measurement in the ferromagnetic phase, is revealed. This suggests a fundamental change in the $4f$ contribution to the Fermi surfaces across the magnetic phase transition widely seen for Ce compounds.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0605021
dc.identifierhttp://arxiv.org/abs/cond-mat/0605021
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110794
dc.subjectStrongly Correlated Electrons
dc.titleObservation of three-dimensional bulk Fermi surfaces for a strongly correlated material by soft x-ray $hν$-dependent (700-860 eV) ARPES
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