Magnetic analysis of MnAs films grown on GaAs and Si substrates for potential spintronics and magnetocaloric applications (Articolo in rivista)

Type
Label
  • Magnetic analysis of MnAs films grown on GaAs and Si substrates for potential spintronics and magnetocaloric applications (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jmmm.2009.09.013 (literal)
Alternative label
  • Solzi Massimo; Pernechele Chiara; Ghidini Massimo; Natali Marco;Bolzan Marco (2010)
    Magnetic analysis of MnAs films grown on GaAs and Si substrates for potential spintronics and magnetocaloric applications
    in Journal of magnetism and magnetic materials
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Solzi Massimo; Pernechele Chiara; Ghidini Massimo; Natali Marco;Bolzan Marco (literal)
Pagina inizio
  • 1565 (literal)
Pagina fine
  • 1568 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0304885309009263 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 322 (literal)
Rivista
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1-3: Dipartimento di Fisica,Università di Parma and CNISM - Parma 4-5: ICIS-CNR, Padova (literal)
Titolo
  • Magnetic analysis of MnAs films grown on GaAs and Si substrates for potential spintronics and magnetocaloric applications (literal)
Abstract
  • We present a magnetic characterisation of MnAs films grown by MOVPE on semiconductor substrates, for comparing the effect of thickness and substrate on their magnetic and magneto-thermal properties, with particular focus on the nature of the magneto-structural transition between the ferromagnetic hexagonal ±-phase and the paramagnetic orthorhombic ²-phase. The nature of this transformation depends on the presence of strain and turns out to be of second-order type for epitaxial–crystalline MnAs/(0 0 1)GaAs films and closer to a first-order type for polycrystalline MnAs/SiO2/Si films. The magnetocaloric effect at the transition has been estimated for thin film samples, resulting appreciably lower than that of bulk MnAs. (literal)
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