Tunneling dynamics of the magnetization in transverse field: 1H-NMR study in single crystal of Fe8
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=1.5 K. When the transverse field is applied along the medium axis of the cluster, a large enhancement of 1/T1 is observed around H=2.6 T. 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.
- Publication:
-
Journal of Magnetism and Magnetic Materials
- Pub Date:
- May 2004
- DOI:
- 10.1016/j.jmmm.2003.12.064
- Bibcode:
- 2004JMMM..272.1013F
- Keywords:
-
- Quantum tunneling of the magnetization;
- NMR;
- nuclear spin-lattice relaxation rates