Evidence for Mn2+ ions at surfaces of La0.7Sr0.3MnO3 thin films (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Evidence for Mn2+ ions at surfaces of La0.7Sr0.3MnO3 thin films (Articolo in rivista) (literal)

Anno

• 2005-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1103/PhysRevB.71.014434 (literal)

Alternative label

• M. P. de Jong; I. Bergenti; V. Dediu; M. Fahlman; M. Marsi; C. Taliani (2005)
  Evidence for Mn2+ ions at surfaces of La0.7Sr0.3MnO3 thin films
  in Physical review. B, Condensed matter and materials physics; The American Physical Society, College Park, MD 20740-3844 (Stati Uniti d'America)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• M. P. de Jong; I. Bergenti; V. Dediu; M. Fahlman; M. Marsi; C. Taliani (literal)

Pagina inizio

• 014434-1 (literal)

Pagina fine

• 014434-4 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://prb.aps.org/abstract/PRB/v71/i1/e014434 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 71 (literal)

Rivista

• Physical review. B, Condensed matter and materials physics (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 4 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 1 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• ISMN - Bologna Department of Science and Technology (ITN), Linköping University, S-601 74 Norrköping, Sweden (literal)

Titolo

• Evidence for Mn2+ ions at surfaces of La0.7Sr0.3MnO3 thin films (literal)

Abstract

• We present a detailed investigation of the valence of manganese sites at the surface of colossal magnetoresistance La0.7Sr0.3MnO3 (LSMO) thin films by x-ray absorption spectroscopy (XAS). The XAS Mn L-edge spectra of epitaxial LSMO films usually show a peak or shoulder at 640 eV. Differences in the intensity of this feature are commonly attributed to slight changes in the Mn3+/Mn4+ ratio or the crystal field strength. By comparison of different XAS spectra of LSMO thin films with the known multiplet structure of Mn2+ in a cubic crystal field, we assign this 640-eV feature to Mn2+ ions. XAS with increased surface sensitivity, combined with photon energy-dependent photoelectron spectroscopy measurements of the Mn(3s) exchange splitting, show that the Mn2+ species are mainly located at the surface. The Mn2+ scenario indicates significant modification of the LSMO surface with respect to the bulk properties that should be taken into account in all the charge and spin tunneling and injection experiments. (literal)

Editore

• The American Physical Society (Editore)

Prodotto di

• Nanostrutture Magnetiche per la Spintronica e la Nanomedicina (PM.P04.006.002) (Modulo)
• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)

Autore CNR

• CARLO TALIANI (Persona)
• ILARIA BERGENTI (Unità di personale interno)
• VALENTIN DEDIU (Persona)

Insieme di parole chiave

• Keywords of "Evidence for Mn2+ ions at surfaces of La0.7Sr0.3MnO3 thin films" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per lo studio dei materiali nanostrutturati (ISMN) (Istituto)
• Nanostrutture Magnetiche per la Spintronica e la Nanomedicina (PM.P04.006.002) (Modulo)

Autore CNR di

• VALENTIN DEDIU (Persona)
• ILARIA BERGENTI (Unità di personale interno)
• CARLO TALIANI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review. B, Condensed matter and materials physics (Rivista)

Editore di

• The American Physical Society (Editore)

Insieme di parole chiave di

• Keywords of "Evidence for Mn2+ ions at surfaces of La0.7Sr0.3MnO3 thin films" (Insieme di parole chiave)