The spin dynamics in the helical chain Co(hfac)(2)NITPhOMe has been investigated by H-1 NMR and muSR relaxation. In the temperature range 15 < T < 60 K, the results are consistent with the relaxation of the homogeneous magnetization. For Tless than or equal to15 K, NMR and muSR evidence a second spin relaxation mechanism, undetected by the magnetization measurements. From the analysis of these data, insights on this novel relaxation process are derived.
Novel spin dynamics in ferrimagnetic molecular chains from H-1 NMR and mu SR spin-lattice relaxation measurements / Micotti E; Lascialfari A; Rigamonti A; Aldrovandi S; Caneschi A; Gatteschi D; Bogani L. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - STAMPA. - 272:(2004), pp. 1087-1088. [10.1016/j.jmmm.2003.12.028]
Novel spin dynamics in ferrimagnetic molecular chains from H-1 NMR and mu SR spin-lattice relaxation measurements
CANESCHI, ANDREA;GATTESCHI, DANTE;
2004
Abstract
The spin dynamics in the helical chain Co(hfac)(2)NITPhOMe has been investigated by H-1 NMR and muSR relaxation. In the temperature range 15 < T < 60 K, the results are consistent with the relaxation of the homogeneous magnetization. For Tless than or equal to15 K, NMR and muSR evidence a second spin relaxation mechanism, undetected by the magnetization measurements. From the analysis of these data, insights on this novel relaxation process are derived.
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