Title :
Magnetostriction of Fe-Co Alloy Films and Its Control by Multilayering
Author :
Shima, T. ; Kataoka, N. ; Fujimori, H.
Author_Institution :
Tohoku University.
Abstract :
The bec Fe70Co30 alloy has a high saturation magnetization and a large positive magnetostriction, whereas the fcc Ni75Co25 alloy has a large negative magnetostriction value. This paper reports the results of a systematic investigation into the magnetic properties of FeCo/NiCo multilayer films. Magnetostriction in an FeCo/NiCo film becomes smaller as the ratio of the thickness of the NiCo layer to that of the FeCo/NiCo film increases. The film (3/7 nm) has a saturation magnetization of 120 emu/g and a coercivity of 1.7 Oe, with nearly zero magnetostriction.
Keywords :
Cobalt alloys; Iron alloys; Magnetic field measurement; Magnetic films; Magnetic multilayers; Magnetics Society; Magnetostriction; Plasma measurements; Saturation magnetization; Sputtering;
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
DOI :
10.1109/TJMJ.1994.4565957
