The proton spin-lattice relaxation rates (1/T1) have been measured as a function of transverse field in single crystal Fe8 cluster at T=1.5K. When the transverse field is applied along the medium axis of the cluster, a large enhancement of 1/T1 is observed around H=2.6T. The peculiar behavior of 1/T1 is well explained by taking into considerations the effect of enhancement of quantum tunneling by an application of the transverse field.
Tunneling dynamics of the magnetization in transverse field: 1H-NMR study in single crystal of Fe8 / Y. Furukawa, K. Aizawa, K. Kumagai, A. Lascialfari, F. Borsa. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 272:part 2(2004), pp. 1013-1014. [10.1016/j.jmmm.2003.12.064]
Tunneling dynamics of the magnetization in transverse field: 1H-NMR study in single crystal of Fe8
A. LascialfariPenultimo
;
2004
Abstract
The proton spin-lattice relaxation rates (1/T1) have been measured as a function of transverse field in single crystal Fe8 cluster at T=1.5K. When the transverse field is applied along the medium axis of the cluster, a large enhancement of 1/T1 is observed around H=2.6T. The peculiar behavior of 1/T1 is well explained by taking into considerations the effect of enhancement of quantum tunneling by an application of the transverse field.
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