The relation between 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 ob- served 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.
Titolo: | Magnetic and structural properties of nanocomposite Co-Ni-Cr-Al-Y-N thin films | |
Autori: | Scardi, Paolo; Leoni, Matteo; G., Ausanio; V., Iannotti; L., Lanotte | |
Autori Unitn: | ||
Titolo del periodico: | APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING | |
Anno di pubblicazione: | 2005 | |
Codice identificativo Scopus: | 2-s2.0-18144413146 | |
Codice identificativo WOS: | WOS:000228794000024 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/s00339-004-2990-6 | |
Handle: | http://hdl.handle.net/11572/82594 | |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |