Abstract

Abstract Magnetization curves of Co 0.35 (SiO 2 ) 0.65 granular film were measured from 70 up to 390 K . Although the anhysteretic magnetization loops could be well described using an integral of Langevin functions weighted by a distribution function of moments, the fitting parameters show an anomalous behavior. The median magnetic moments exhibit a low-temperature limit close to zero, and all have values well below the value expected from TEM analyses, with observed differences up to 82%.

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