Manganite/Alq3 interfaces investigated by impedance spectroscopy technique (Articolo in rivista)

Type
Label
  • Manganite/Alq3 interfaces investigated by impedance spectroscopy technique (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Alternative label
  • M. Barra, A. Cassinese, P. D'Angelo, L.E. Hueso, P. Graziosi, V. Dediu (2008)
    Manganite/Alq3 interfaces investigated by impedance spectroscopy technique
    in Organic electronics (Print)
    (literal)
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  • M. Barra, A. Cassinese, P. D'Angelo, L.E. Hueso, P. Graziosi, V. Dediu (literal)
Pagina inizio
  • 911 (literal)
Pagina fine
  • 915 (literal)
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  • 9 (literal)
Rivista
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  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
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  • \"[Barra, M.; Cassinese, A.; D'Angelo, P.] Univ Naples Federico 2, CRS COHERENTIA, CNR-INFM and Dipartimento Scienze Fisiche, Università di Napoli ''Federico II\", Piazzale Tecchio 80, 80125 Naples, Italy [Hueso, L. E.; Graziosi, P.; Dediu, V.] ISMN - Istituto per lo Studio dei Materiali Nanostrutturati (CNR), via Gobetti 101, 40129 Bologna, Italy (literal)
Titolo
  • Manganite/Alq3 interfaces investigated by impedance spectroscopy technique (literal)
Abstract
  • With the general objective of studying interfaces between ferromagnetic materials and organic semiconductors, we report ac impedance investigations on La0.7Sr0.3MnO3 (LSMO)/tris(8-hydroxyquinoline)aluminium (Alq3)/Al and Indium Tin Oxide (ITO)/Alq3/Al heterostructures, in the frequency range between 20 Hz and 1 MHz. The comparison of the equivalent circuits deduced to fit the experimental ac responses allows isolating a specific RC contribution which can be attributed to the LSMO/Alq3 interface region. Using the information obtained from our ac measurements, we propose a model which fits the temperature dependence of the magnetoresistance in spin valves combining LSMO electrodes and Alq3 layers. (literal)
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