Collective spin dynamics in magnetic nanomaterials

Abstract

Magnetic nanomaterials are considered, forrned by magneitc nanomolecules with high spins. The problem of spin reversal in these materials is analysex, which is of interest for the possible use of such materials for quantum information processing and quantum cormputing. The fastest spin reversal can be achieved by coupling the spin sample to a resonant electric circuit and by an appropriate choice of the system parameters. A principal pont is to choose these parameters so that to organize coherent spin motion. Dynamics of collective motion is modelled by computer simulations, which confirm the high level of dynarinical coherence of molecular spins in the pricess of spin reversal. © 2008 IOP Publishing Ltd.