Abstract
The positron annihilation and Μossbauer effect measurements in permalby Νi77/Fe14.4/Cu4.5/Mo0.5/Cr2.2/Si0.2 for different cooling rates have been performed. The results have been discussed in view of the magnetic properties of the alloy. Based on the energy spectra of positron annihilation radiation and 57 Fe Mossbauer spectra, the positron polarization coefficient and the hyperfine field distributions have been calculated, respectively. We demonstrate that the results of both, positron annihilation and Mossbauer effect measurements, are in very close relation to the initial permeability μ0.4 (at H = 0.4 A/m) and resistivity measurements.
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