S mixing and quantum tunneling of the magnetization in molecular nanomagnets.
The role of S mixing in the quantum tunneling of the magnetization in nanomagnets has been investigated. We show that the effect on the tunneling frequency is huge and that the discrepancy (more than 3 orders of magnitude in the tunneling frequency) between spectroscopic and relaxation measurements in Fe(8) can be resolved if S mixing is taken into account.
Carretta
S
S
Istituto Nazionale per la Fisica della Materia, Dipartimento di Fisica, Università di Parma, I-43100 Parma, Italy.
Liviotti
E
E
Magnani
N
N
Santini
P
P
Amoretti
G
G