Nickel magnetic moment in (Ni1-xFex)77Si10B13glasses

(Ni
1-x
Fe
x
)
77
Si
10
B
13
metallic alloys with x = 0.0, 0.1 and 0.9 have been studied at 4.2 K with
⁶¹
Ni Mössbauer spectroscopy. It is shown that Ni atoms bear no magnetic moment in Ni
77
Si
10
B
13
, and that their moment in (Ni
0.9
Fe
0.1
)
77
Si
10
B
13
and (Ni
0.1
Fe
0.9
)
77
Si
10
B
13
is respectively 0.38 and 0.65 μ
B
. An analysis based on our and literature data shows that, similarly to Ni-Fe crystalline alloys, Ni atoms do carry a magnetic moment in Ni-Fe-based amorphous alloys.