About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
IEEE Transactions on Magnetics
Paper
Magnetic, transport, and structural properties of iron-platinum thin films.
Abstract
The magnetic, transport. and structural properties of RF sputtered Fe-Pt thin films were studied as a function of Pt content from 0 to 75 at.%. Polycrystalline ferromagnetic films were obtained in the range studied. The properties of the films are very similar to those obtained for bulk alloys. A body-centered-cubic phase is obtained for as-deposited films with less than 25 at.% Pt, and a face-centered-cubic structure is obtained for films with more than 25 at. % Pt. By annealing equiatomic Fe- Pt films, very large coercivities (about 10 k0ersteds) can be obtained depending on the thickness, duration and temperature of annealing. The magnetization of Fe-Pt films is sufficiently large such that a moment of approximately 0.4 Bohr magneton must be associated with the Pt if Fe remains at 2.2 Bohr magneton per atom. The magnetostriction, Hall effect, and anisotropic magnetoresistance are all large near the equiatomic range of compositions. © 1984 IEEE