Static and dynanflc magnetic properties of fine CoNi and FeCoNi particles syntiiesized by the polyol process

CoxNi100-x and Fez[CoxNi100-x]1-x (0 ≤x≤100, 0≤Z≤0.25) particles elaborated by the polyol process display remarkable morphological characteristics (Figure 1), i.e. an almost spherical shape, a low degree of agglomeration, a narrow size distribution, a mean diameter in the 6nm-2μm range with an accurate and reproducible control at least in the nanometer and submicrometer size range [1,2].