Application of the Coupling Model to Magnetic After Effects in the Fe72Co10Nb6B12 Amorphous Alloy
A. Chrobak, G. Chełkowska
Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland
G. Haneczok, P. Kubik and Ł. Madej
Institute of Materials Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland
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It was shown that magnetic reluctivity measured versus time after demagnetization for pre-annealed samples of the Fe72Co10Nb6B12 amorphous alloy exhibits highly non-exponential behavior which can be described by the coupling model. The relaxation intensity and the coupling parameter describing correlation effects in free volume diffusion decrease with increasing 1 h annealing temperature indicating annealing out of free volume and formation of iron clusters in amorphous matrix.
DOI: 10.12693/APhysPolA.115.396
PACS numbers: 75.50.-y, 75.75.+a