Title :
FMR and magnetization study of NiFe/Ag/CoNi trilayer film
Author :
Koymen, A.R. ; Tagirov, L.R. ; Gilmutdinov, R.T. ; Topacli, C. ; Birlikseven, C. ; Durusoy, H.Z. ; Aktas, B.
Author_Institution :
Texas Univ., Arlington, TX, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
The polycrystalline FeNi/Ag/CoNi asymmetric trilayer films were prepared by UHV magnetron sputtering on silicon. In plane magnetization measurements showed double-step hysteresis loops. Magnetoresistance (MR) measurements revealed a giant magnetoresistance effect with magnitudes in the 0.15-0.29% range at room temperature. The saturation magnetizations and the interaction between layers were studied by ferromagnetic resonance and revealed an undistinguishably weak interlayer coupling from out-of-plane geometry of measurements. The MR data are interpreted based on the incomplete domain alignment model for polycrystalline magnetic films
Keywords :
Permalloy; cobalt alloys; ferromagnetic resonance; giant magnetoresistance; magnetic hysteresis; magnetic multilayers; nickel alloys; silver; sputtered coatings; 293 K; NiFe-Ag-CoNi; UHV magnetron sputtering; double-step hysteresis loops; ferromagnetic resonance; giant magnetoresistance; incomplete domain alignment model; magnetization; polycrystalline asymmetric trilayer films; Couplings; Geometry; Giant magnetoresistance; Magnetic hysteresis; Magnetic resonance; Saturation magnetization; Semiconductor films; Silicon; Sputtering; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
