Electron spin resonance in a Cu80Fe20 metastable alloy prepared by DC sputtering

Abstract We present a detailed investigation of the magnetic properties of a disordered Cu 80 Fe 20 metastable alloy, produced by dc sputtering, in the temperature range 4–300 K. The experimental results from ESR, magnetization and susceptibility measurements do not show evidence for any long range ferromagnetic order and suggest a spin glass-like behaviour with a T g as high as 136 K. Strong Dzyaloshinsky-Moriya anisotropy effects are revealed at low temperatures.