The low-temperature spin dynamics in molecular rings with a finite number (N≤10) of magnetic ions was studied by means of 1H NMR. When an external magnetic field (B) induces a crossing between energy levels, peaks are observed in the spin-lattice relaxation rate of protons, 1/T1(B), at constant temperature. We discuss similarities and differences in the data from three different rings: Fe10, Fe6:Li and Cr8.
Spin dynamics at level crossing in molecular AF rings probed by NMR / A. Lascialfari, F. Borsa, M.H. Julien, E. Micotti, Y. Furukawa, Z.H. Jang, A. Cornia, D. Gatteschi, M. Horvatic, J. Van Slageren. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 272:Part. 2 Sp. Iss. SI(2004), pp. 1042-1047. [10.1016/j.jmmm.2003.12.005]
Spin dynamics at level crossing in molecular AF rings probed by NMR
A. LascialfariPrimo
;
2004
Abstract
The low-temperature spin dynamics in molecular rings with a finite number (N≤10) of magnetic ions was studied by means of 1H NMR. When an external magnetic field (B) induces a crossing between energy levels, peaks are observed in the spin-lattice relaxation rate of protons, 1/T1(B), at constant temperature. We discuss similarities and differences in the data from three different rings: Fe10, Fe6:Li and Cr8.
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