Temperature-dependent electronic structure of the colossal magnetoresistive manganite La0.7Sr0.3MnO3 from hard x-ray photoemission (Articolo in rivista)

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  • Temperature-dependent electronic structure of the colossal magnetoresistive manganite La0.7Sr0.3MnO3 from hard x-ray photoemission (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • Offi, F; Mannella, N; Pardini, T; Panaccione, G; Fondacaro, A; Torelli, P; West, MW; Mitchell, JF; Fadley, CS (2008)
    Temperature-dependent electronic structure of the colossal magnetoresistive manganite La0.7Sr0.3MnO3 from hard x-ray photoemission
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Offi, F; Mannella, N; Pardini, T; Panaccione, G; Fondacaro, A; Torelli, P; West, MW; Mitchell, JF; Fadley, CS (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 77 (literal)
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  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Offi, Francesco] CNISM, I-00146 Rome, Italy; [Offi, Francesco] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy; [Mannella, Norman; West, Mark. W.; Fadley, Charles S.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA; [Mannella, Norman] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA; [Mannella, Norman] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA; [Pardini, Tommaso; Fadley, Charles S.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA; [Panaccione, Giancarlo] Lab Nazl TASC INFM CNR, I-34012 Trieste, Italy; [Fondacaro, Andrea] ESRF, F-38043 Grenoble, France; [Torelli, Piero] Ctr Univ Paris Sud, LURE, F-91898 Orsay, France; [Mitchell, John F.] Argonne Natl Lab, Argonne, IL 60439 USA; [Mitchell, John F.] Julich Res Ctr, Inst Solid State Res, D-52425 Julich, Germany; [Fadley, Charles S.] Univ Hamburg, Hasylab, D-22761 Hamburg, Germany (literal)
Titolo
  • Temperature-dependent electronic structure of the colossal magnetoresistive manganite La0.7Sr0.3MnO3 from hard x-ray photoemission (literal)
Abstract
  • We have studied in situ fractured surfaces of single-crystal La0.7S10.3MnO3 with hard x-ray photoemission (HXPS) at an excitation energy of 7.7 keV. These more bulk-sensitive measurements reveal low-binding-energy satellites in the Mn 2p(3/2), 3s, and 3p core spectra that are in agreement with previously observed satellites in Mn 2p(3/2) for other strongly correlated materials, and which have been interpreted in terms of nonlocalized screening effects. The Mn 3s spectrum is consistent with recent soft x-ray measurements [N. Mannella et al., Phys. Rev. Lett. 92, 166401 (2004)] in showing an increased multiplet splitting at temperatures 100 K or more above the Curie temperature, although the magnitude of the effect is somewhat reduced. The valence-band spectra exhibit significant enhancement of intensity at such higher temperatures that we interpret as evidence of localization of Mn 3d-derived charge, which is in agreement with the multiplet splitting change and prior soft x-ray work. Additional aspects of HXPS for the study of complex materials are thus demonstrated. (literal)
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