Spin-Polarization Transfer in Colloidal Magnetic-Plasmonic Au/Iron Oxide Hetero-nanocrystals (Articolo in rivista)

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  • Spin-Polarization Transfer in Colloidal Magnetic-Plasmonic Au/Iron Oxide Hetero-nanocrystals (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/nn305459m (literal)
Alternative label
  • Pineider, F; Fernandez, CD; Videtta, V; Carlino, E; al Hourani, A ; Wilhelm, F; Rogalev, A; Cozzoli, PD; Ghigna, P; Sangregorio, C (2013)
    Spin-Polarization Transfer in Colloidal Magnetic-Plasmonic Au/Iron Oxide Hetero-nanocrystals
    in ACS nano; ACS, American chemical society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pineider, F; Fernandez, CD; Videtta, V; Carlino, E; al Hourani, A ; Wilhelm, F; Rogalev, A; Cozzoli, PD; Ghigna, P; Sangregorio, C (literal)
Pagina inizio
  • 857 (literal)
Pagina fine
  • 866 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 7 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (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
  • 1 ] Univ Padua, Dipartimento Sci Chim, CNR, ISTM, I-35131 Padua, Italy 2 ] INSTM, I-35131 Padua, Italy 3 ] CNR, ISTM, I-20133 Milan, Italy 4 ] Univ Florence, INSTM, I-50019 Florence, Italy 5 ] Univ Florence, Dipartimento Chim U Schiff, I-50019 Florence, Italy 6 ] CNR Ist Nanosci, NNL, I-73100 Lecce, Italy 7 ] CNR, IOM, TASC Natl Lab, I-34149 Trieste, Italy 8 ] Univ Pavia, INSTM, I-27100 Pavia, Italy 9 ] Univ Pavia, Dipartimento Fis A Volta, I-27100 Pavia, Italy 10 ] European Synchrotron Radiat Facil, F-38043 Grenoble, France 11 ] Univ Salento, INSTM, I-73100 Lecce, Italy 12 ] Univ Salento, Dipartimento Matemat & Fis E De Giorgi, I-73100 Lecce, Italy 13 ] Univ Pavia, Dipartimento Chim, I-27100 Pavia, Italy (literal)
Titolo
  • Spin-Polarization Transfer in Colloidal Magnetic-Plasmonic Au/Iron Oxide Hetero-nanocrystals (literal)
Abstract
  • We report on the unprecedented direct observation of spin-polarization transfer across colloidal magneto-plasmonic Au@Fe-oxide core@shell nanocrystal heterostructures. A magnetic moment is induced into the Au domain when the magnetic shell contains a reduced Fe-oxide phase in direct contact with the noble metal. An increased hole density in the Au states suggested occurrence of a charge-transfer process concomitant to the magnetization transfer. The angular to spin magnetic moment ratio, m(orb)/m(spin) for the Au 5d states, which was found to be equal to 0.38, appeared to be unusually large when compared to previous findings. A mechanism relying on direct hybridization between the Au and Fe states at the core/shell interface is proposed to account for the observed transfer of the magnetic moment. (literal)
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