Abstract
The magnetic behavior of nanoglass Fe79B21 powder has been
investigated by Mossbauer spectroscopy in a temperature range from
5 to 295 K together with one amorphous Fe80B20 ribbon prepared by
melt-spinning. It is found that average hyperfine fields for the
powder sample are smaller than those for the ribbon sample in the
whole temperature range studied. The reduced average hyperfine
field of nanoglass Fe79B21 powders follows the Bloch's law,
H(T)/H(0)=1-BT3/2. The B paramaters for the powder and the ribbon
samples are found to be about 2.8 x 10-5K3/2 and 2.2 x 10-5K3/2,
respectively, indicating that the degree of local structural
disorder in the powder sample is higher than that in the ribbon.
| Original language | English |
|---|---|
| Journal | Nanostructured Materials |
| Volume | 12 |
| Issue number | 5-8 |
| Pages (from-to) | 843-846 |
| ISSN | 0965-0773 |
| Publication status | Published - 1999 |