Electronic Control of Spin Alignment in Molecular Magnets

Abstract

A new trend in molecular magnetism is introduced which aims to control the alignment of the radical spins by external stimuli such as charge doping and photoexcitation. We describe its basic concept as well as experiments successfully showing controllable spin alignment within π-conjugated molecules. Our recent theoretical work based on a microscopic Hamiltonian also indicates that electronic control by doping is possible. We discuss the manner and mechanism of spin alignment in doped molecular magnets.