NiO/Fe(001): Magnetic anisotropy, exchange bias, and interface structure (Articolo in rivista)

Type
Label
  • NiO/Fe(001): Magnetic anisotropy, exchange bias, and interface structure (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.4811528 (literal)
Alternative label
  • E. M?y?czak, P. Luches, S. Valeri, and J. Korecki (2013)
    NiO/Fe(001): Magnetic anisotropy, exchange bias, and interface structure
    in Journal of applied physics; American Institute Of Physics (AIP), Melville (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • E. M?y?czak, P. Luches, S. Valeri, and J. Korecki (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://jap.aip.org/resource/1/japiau/v113/i23/p234315_s1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 113 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 23 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland S3, Istituto Nanoscienze--CNR, Via G. Campi 213/a, I-41125 Modena, Italy Dipartimento di Scienze Fisiche, Matematiche e Informatiche, Università di Modena e Reggio Emilia, Via G. Campi 213/a, 41100 Modena, Italy Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al.Mickiewicza 30, 30-059 Krakow, Poland (literal)
Titolo
  • NiO/Fe(001): Magnetic anisotropy, exchange bias, and interface structure (literal)
Abstract
  • The magnetic and structural properties of NiO/Fe epitaxial bilayers grown on MgO(001) were studied using magnetooptic Kerr effect (MOKE) and conversion electron Mossbauer spectroscopy (CEMS). The bilayers were prepared under ultra high vacuum conditions using molecular beam epitaxy with oblique deposition. Two systems were compared: one showing the exchange bias (100ML-NiO/24ML-Fe), ML stands for a monolayer, and another where the exchange bias was not observed (50ML-NiO/50ML-Fe). For both, the magnetic anisotropy was found to be complex, yet dominated by the growth-induced uniaxial anisotropy. The training effect was observed for the 100ML-NiO/24ML-Fe system and quantitatively described using the spin glass model. The composition and magnetic state of the interfacial Fe layers were studied using Fe-57-CEMS. An iron oxide phase (Fe43+Fe12+O7), as thick as 31 angstrom, was identified at the NiO/Fe interface in the as-deposited samples. The ferrimagnetic nature of the interfacial iron oxide film explains the complex magnetic anisotropy observed in the samples. (C) 2013 AIP Publishing LLC. (literal)
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