Dispersion containing micelles of surfactants Tween-20 and Tween-80. (a) Tensiometric analysis. (b) particle size distribution obtained from DLS measurements. (c) XRD patterns of samples M1, M2, M3, and M4. Numbers on each peak are the miller indexes for the structure.
Magnetization as a function of the magnetic field of all the samples. The inset show the magnetization measurement of samples M1 and M2.
Ratio (a) and coercive field, (b) as a function of the diameter of all the samples. (c) TEM image for sample M3C. (d) Particle size distribution for sample M3C.
plots of all the samples.
Mössbauer spectroscopy measurements of performed at RT for all the samples.
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