Hyperfine coupling of12B in noble metals and Al; enhancement of the conduction-electron spin susceptibility by e-e exchange
| Autor: | Romain Coussement, K. Tompa, Mathias Cyamukungu, L. Grenacs, G. S'heeren, J. Lehmann, R. Pirlot |
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| Rok vydání: | 1993 |
| Předmět: |
Conduction electron
Nuclear and High Energy Physics Condensed matter physics Spin–lattice relaxation chemistry.chemical_element Knight shift Condensed Matter Physics Atomic and Molecular Physics and Optics Hyperfine coupling medicine.anatomical_structure chemistry Lattice (order) medicine Physical and Theoretical Chemistry Spin (physics) Boron Nucleus |
| Zdroj: | Hyperfine Interactions. 80:989-993 |
| ISSN: | 1572-9540 0304-3843 |
| DOI: | 10.1007/bf00567452 |
| Popis: | We have remeasured the Korringa contributionT1e to the nuclear spin lattice relaxation time of the interstitial12B in nobel metals and in Al. TheT1eT times the squared Knight shiftK of12B taken from the literature, that is the Korringa product of12B, shows that the conduction-electron spin susceptibility is exchange enhanced similarly to that sensed by the matrix nucleus. The enhancement factors are equal within the experimental errors for both interstitial and matrix positions in Cu and Ag. The enhancement factors at the boron and at the matrix position are different in Au and Al. |
| Databáze: | OpenAIRE |
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