The first NMR data of alkali-metal ion nuclei ( 7Li) in magnetic molecular rings was discussed. The Li nuclear magnetic resonance (NMR) spectra and nuclear pin-lattice relaxation rate (NSLR) measurements as a function of temperature from 1.5 to 50 K with applied field H = 1.5T were reported. It was found that the unsolved problem in magnetic rings was the determination of the temperature T spin dynamics and its effects on the nuclear relaxation. It was observed that the maxima in both Li and H NSLR pointed towards a slow electronic spin dynamics at temperatures of the order of J/k b.
Li-7 nuclear magnetic resonance in the hexairon(III) antiferromagnetic molecular ring Fe6 : Li / A. Lascialfari, F. Borsa, M. Corti, E. Micotti, Y. Furukawa, A. Cornia, D. Gatteschi. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - 95:11(2004), pp. 6879-6881. [10.1063/1.1687225]
Li-7 nuclear magnetic resonance in the hexairon(III) antiferromagnetic molecular ring Fe6 : Li
A. LascialfariPrimo
;
2004
Abstract
The first NMR data of alkali-metal ion nuclei ( 7Li) in magnetic molecular rings was discussed. The Li nuclear magnetic resonance (NMR) spectra and nuclear pin-lattice relaxation rate (NSLR) measurements as a function of temperature from 1.5 to 50 K with applied field H = 1.5T were reported. It was found that the unsolved problem in magnetic rings was the determination of the temperature T spin dynamics and its effects on the nuclear relaxation. It was observed that the maxima in both Li and H NSLR pointed towards a slow electronic spin dynamics at temperatures of the order of J/k b.
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