High magnetic moment Fe-Co-Al sputtered films

Abstract

The magnetic properties of transition-metal–rich Fe-Co-Al films prepared by sputtering from a hollow cathode ring segmented target have been studied as a function of transition-metal composition as well as differing sputtering parameters such as substrate temperature. The major new results observed are high values of the saturation moment for series of samples with (Fe79Co21)100−xAlx for x=0–25. The saturation magnetization 4πMs observed at x=0 is 29.2±2.6 kG. This measured value was in agreement with extrapolations based on data for x=10–25.