ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
An expression for the temperature dependence of recoil-free fraction of iron atoms was derived from the two-band theory proposed previously by the present authors, and it was applied to investigate the bonding characteristics of iron in amorphous Fe83B17, Fe80B20, and Fe80P20 alloys. The characteristic temperatures were found to be θ1=605 K and θ3=230 K for amorphous Fe83B17, θ1=655 K and θ3=185 K for amorphous Fe80B20, and θ1=425 K and θ3=185 K for amorphous Fe80P20. The comparison between these values with those obtained from the specific-heat measurements showed a good agreement for θ1, which is a measure of interatomic bond strength, indicating that metalloid atoms are not connected to each other in these Fe–mettalloid binary amorphous alloys but are bonded to iron atoms. Based on this result, the force constant was estimated for Fe–B, Fe–P, and Fe–Fe bonds. On the other hand, the values of θ3 obtained from the Mössbauer study were significantly different from those obtained from specific-heat measurements.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.337421
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