The relation structural and magnetic properties of Co-Ni-Cr-Al-Y-N thin films deposited by reactive r.f. magnetron sputtering was investigated. A marked change in the magnetic behaviour of the films with the different nitrogen partial pressure in the Ar/N2 deposition atmosphere was observed and qualitatively explained in correlation with the phase composition. The nanocrystalline metal solid-solution obtained at low N2 content and the nanocrystalline nitride/amorphous composite obtained at high N2 content are not magnetic, whereas the amorphous phase produced for intermediate N2 pressures behaves like a ferromagnetic semi-permanent material. The results demonstrate the possibility of modulating the magnetic properties of r.f. magnetron sputtered Co-Ni-Cr-Al-Y-N thin films, thus opening a new route for magnetic multilayer deposition.

Magnetic and structural properties of nanocomposite Co-Ni-Cr-Al-Y-N thin films / P., Scardi; M., Leoni; Ausanio, Giovanni; Iannotti, Vincenzo; Lanotte, Luciano. - In: APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING. - ISSN 0947-8396. - STAMPA. - 81:1(2005), pp. 143-146. [10.1007/s00339-004-2990-6]

Magnetic and structural properties of nanocomposite Co-Ni-Cr-Al-Y-N thin films

AUSANIO, GIOVANNI;IANNOTTI, VINCENZO;LANOTTE, LUCIANO
2005

Abstract

The relation structural and magnetic properties of Co-Ni-Cr-Al-Y-N thin films deposited by reactive r.f. magnetron sputtering was investigated. A marked change in the magnetic behaviour of the films with the different nitrogen partial pressure in the Ar/N2 deposition atmosphere was observed and qualitatively explained in correlation with the phase composition. The nanocrystalline metal solid-solution obtained at low N2 content and the nanocrystalline nitride/amorphous composite obtained at high N2 content are not magnetic, whereas the amorphous phase produced for intermediate N2 pressures behaves like a ferromagnetic semi-permanent material. The results demonstrate the possibility of modulating the magnetic properties of r.f. magnetron sputtered Co-Ni-Cr-Al-Y-N thin films, thus opening a new route for magnetic multilayer deposition.
2005
Magnetic and structural properties of nanocomposite Co-Ni-Cr-Al-Y-N thin films / P., Scardi; M., Leoni; Ausanio, Giovanni; Iannotti, Vincenzo; Lanotte, Luciano. - In: APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING. - ISSN 0947-8396. - STAMPA. - 81:1(2005), pp. 143-146. [10.1007/s00339-004-2990-6]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/105758
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