Comparison of amorphous and crystalline FeB

1 January 1984

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 29 (1) , 207-211
https://doi.org/10.1103/physrevb.29.207

Abstract

We have studied amorphous FeB made by high-rate sputtering. The results are compared with those of crystalline FeB containing a single Fe site. The quadrupole splittings and the isomer shifts measured in the paramagnetic state and the hyperfine-field distribution measured in the ferromagnetic state show considerable differences between amorphous and crystalline FeB. These results indicate dissimilar short-range order in the amorphous and crystalline states. The hyperfine field of amorphous FeB decreases more rapidly with temperature than that of crystalline FeB. This clearly illustrates the effects of a distribution of exchange interactions in an amorphous ferromagnet as opposed to a single-site crystalline ferromagnet.

Keywords

EXCHANGE INTERACTION

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