http://www.cnr.it/ontology/cnr/individuo/prodotto/ID228854
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)
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- 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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