Nuclear Magnetic Resonance Study of Hyperfine Fields in Dilute Fe Alloys
β Scribed by E. F. Mendis; L. W. Anderson
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 760 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0370-1972
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β¦ Synopsis
Abstract
The hyperfine field spectra of ten Fe alloy systems have been studied. Nuclear magnetic resonance fastβpassage techniques have been used to obtain direct plots of the distributions of hyperfine fields. The systems studied were FeAl, FeSi, FeV, FeCr, FeMn, FeCo, FeNi, FeGe, FePd, and FeSn. In general, four alloys of each system were studied, with the impurity concentration varying from 10^β3^ to 1.5 Γ 10^β2^. All the experimental hyperfine field distributions include satellite resonances. These satellites are interpreted as arising from different sets of Fe nearβneighbours of an impurity. The intensities and line shapes of the satellites are studied. The results of the study are compared with the results of spinβecho NMR and MΓΆssbauer effect studies to obtain (for most of the alloys) the hyperfine field shifts at the first five nearβneighbor sites.
π SIMILAR VOLUMES
The shape of the saCu nuclear magnetic resonance line in Cu-metal proves to depend strongly on very small amounts of paramagnetic impurities (e.g. Mn). The line width zJ, defined as the distance in field strength between the two points of maximum slope of the absorption curve, which is about 6.60e i