非一様な磁化構造をもっ強磁性金属中の電子の理論

摘要

Novel effects arising from strong sd exchange interactions in ferromagnetic metals with slowly varying magnetization structures are discussed from various theoretical viewpoints. A magnetization structure acts as a gauge field, giving rise to a spin electromagnetic field coupled to electron spin. The gauge coupling leads to spin motive forces generated by magnetization structures and current induced torque as reciprocal effects. The effects of Rashba spin-orbit interaction are also discussed.