Magnetic properties of amorphous Cr–Fe alloys prepared by thermal evaporation and mechanical milling

Abstract

Cr100−xFex amorphous alloys have been prepared through two different routes: thermal coevaporation and mechanical milling. The Mössbauer measurements on the materials show that the amorphization leads to a dramatic reduction of Fe magnetic moment as compared to the crystalline bulk samples. On the other hand, the magnetic ac susceptibility and the magnetization measurements indicate a dominant ferromagnetic intracluster interaction with a competing intercluster interaction. Such a competition could give rise to a spin-glass-like behavior.