Effect of structural disorder on magnetic frustrations in the Fe_(80)Nb_6B_(14) amorphous alloy

摘要

The paper presents measurements of magnetic frustrations for the Fe_(80)Nb_6B_(14) amorphous alloy preliminary annealed for 1 h at temperatures ranging from 300 to 770 K in comparison with other parameters characterizing structural relaxation. It was shown that annealing out of free volume and internal stresses cause a reduction in number of frustrated states observed in the range 400 > T> 50 K. In the range 2 < T< 50 K additional frustrations due to iron clusters or nanograins were detected.