Anomalous Temperature Dependence of the Hyperfine Field at 119Sn Nuclei in Co and Co–Ni Alloys
- 1 March 1970
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 41 (3) , 1323-1324
- https://doi.org/10.1063/1.1658923
Abstract
The temperature dependence of the hyperfine field for 119Sn nuclei in Co is anomalous as it decreases much faster with increasing temperature than does the magnetization. For Sn119 in Ni, on the other hand, the hyperfine field‐temperature dependence is quite normal. We have performed Mössbauer studies from 4.2°K to the Curie point on alloys of composition Co1−xNix (x=0.4, 0.6, 0.8) that contain 1 at.% 119Sn. The anomalous temperature dependence decreases in a fairly uniform fashion as the composition changes from Co to Ni. A possible explanation of this behavior is that the Sn impurity atom and some fraction of its nearest neighbors may act as a spin polarized unit which behaves like a localized moment in the ferromagnetic host. If one assumes that, the anomalous temperature dependence can be explained by a molecular field model.This publication has 8 references indexed in Scilit:
- Temperature Dependence of the NMR Satellite Lines in Ferromagnetic Co-Dilute AlloysJournal of the Physics Society Japan, 1969
- Anomalous Temperature Dependence of the Hyperfine Field at 119Sn in CoJournal of Applied Physics, 1969
- Mössbauer and Resistivity Study of Dilute Sn-Transition Metal AlloysJournal of Applied Physics, 1969
- Mössbauer Studies of Ordered and Cold-Worked Fe–Al Alloys Containing 30 to 50 at. % AluminumJournal of Applied Physics, 1967
- Distribution of magnetization in mixed magnetic systems: I. Non-magnetic impurityProceedings of the Physical Society, 1966
- The hyperfine field at manganese impurities in ferromagnetic ironPhysics Letters, 1966
- Localized Moments of Manganese Impurities in Ferromagnetic IronPhysical Review Letters, 1964
- ObscurantismPhysical Review Letters, 1964