The enhancement of fe hyperfine field with mn addition in A-FE(80-X-Y)NIYMNXB12SI8 alloys

Abstract

Amorphous Fe(80-x-y)Ni(y)Mn(x)B12Si8 alloys with 0 less-than-or-equal-to x less-than-or-equal-to 1 and 20 less-than-or-equal-to y less-than-or-equal-to 50, have been studied using Mossbauer spectroscopy at 77 K. It has been found that the sharp rise in the alloy magnetic moment for certain specific values of x and y can be best explained if both mu-Fe and mu-Ni increase for those particular samples. However, the increase in mu-Ni (approximately 80%) is much larger than that in mu-Fe (approximately 5%).