S-mixing and quantum tunneling of the magnetization in molecular nanomagnets

Abstract

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.

REVTEX, 10 pages, 3 jpg figures, to appear in PRL

References in corpus (1)

• Macroscopic evidence of quantum coherent oscillations of the total spin in the Mn-[3x3] molecular nanomagnet

Cited by in corpus (6)

• Pair-wise decoherence in coupled spin qubit networks
• A perturbative approach to J mixing in f-electron systems: Application to actinide dioxides
• Single-ion and exchange anisotropy effects and multiferroic behavior in high-symmetry tetramer single molecule magnets
• Direct observation of mixing of spin-multiplets in an antiferromagnetic molecular nanomagnet by electron paramagnetic resonance
• Dynamics and thermalization of the nuclear spin bath in the single-molecule magnet Mn12-ac: test for the theory of spin tunneling
• Spin anisotropy effects in dimer single molecule magnets