Abstract
Abstract Fe–Sm alloys are intensively used in permanent magnet design, due to their high magnetic remanence. Large magnetostriction detected in Fe–Sm thin films recommended these films as substitutes for electrostrictive elements in microactuator-type devices. Amorphous thin solid films with composition Fe 100− x Sm x was obtained using double-cathode dc sputtering and opposite-target dc magnetron. For atomic percent of samarium x =29, 38, and 50 the Fe–Sm thin films exhibit amorphous structure. Magnetic properties, including magnetic anisotropy and torque magnetometer hysteresis loop, were measured using a high sensitivity torque magnetometer. For double-cathode arrangement obtained films, in-plane anisotropy was detected and measured. For films obtained in opposite-target dc magnetron, a tilted anisotropy was found, and influence of strain magnetic field from cathode upon preferential magnetization axes is pointed out. Other magnetic behaviors were found to be in good agreement with that reported by other authors.
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