Electronic structure of MnSi: The role of electron-electron interactions (Articolo in rivista)

Type
Label
  • Electronic structure of MnSi: The role of electron-electron interactions (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.73.085114 (literal)
Alternative label
  • Carbone, F; Zangrando, M; Brinkman, A; Nicolaou, A; Bondino, F; Magnano, E; Nugroho, AA; Parmigiani, F; Jarlborg, T; van der Marel, D (2006)
    Electronic structure of MnSi: The role of electron-electron interactions
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Carbone, F; Zangrando, M; Brinkman, A; Nicolaou, A; Bondino, F; Magnano, E; Nugroho, AA; Parmigiani, F; Jarlborg, T; van der Marel, D (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 73 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Département de Physique de la Matière Condensée, Universitée de Genève, CH-1211 Genève 4, Switzerland Laboratorio Nazionale TASC-CNR, Basovizza Strada Statale 14, Km 163.5, 34012 Trieste, Italy INFM, Dipartimento di Matematica e Fisica, UCSC, Via dei Musei 41, 25121 Brescia, Italy Materials Science Centre, University of Groningen, 9747 AG Groningen, The Netherlands Jurusan Fisika, Institut Teknologi Bandung, Indonesia (literal)
Titolo
  • Electronic structure of MnSi: The role of electron-electron interactions (literal)
Abstract
  • We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy ?XAS?, x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi, while a good match is achieved within the atomic multiplet theory assuming a mixed valence ground state. We discuss the role of the electron-electron interactions in this compound and estimate that the valence fluctuations are suppressed by a factor of 2.5, which means that the Coulomb repulsion is not negligible. (literal)
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