Current-driven quantum dynamics of toroidal moment in rare-earth nanoclusters

Abstract

The current-driven quantum dynamics of toroidal moment in single molecule magnets with polygonal rare-earth ion core is investigated. The effects of an external current is considered both in equilibrium and in the frames of the Landau-Zener-Stückelberg tunneling model. It is shown that the toroidal moment is a suitable degree of freedom for using the systems in question as qubits in quantum computing.