Ultrafast magnetic vortex core switching driven by topological inverse Faraday effect

Abstract

We present a theoretical discovery of an unconventional mechanism of inverse Faraday effect (IFE) which acts selectively on topological magnetic structures. The effect, topological inverse Faraday effect (TIFE), is induced by spin Berry's phase of the magnetic structure when a circularly polarized light is applied. Thus a spin-orbit interaction is not necessary unlike in the conventional IFE. We demonstrate by numerical simulation that TIFE realizes ultrafast switching of a magnetic vortex within a switching time of 150 ps without magnetic field.

11 pages, 4 figures

References in corpus (3)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Microscopic approach to current-driven domain wall dynamics
• Theory of inverse Faraday effect in disordered metal in THz regime

Cited by in corpus (12)

• Effective gauge field theory of spintronics
• Laser-induced torques in metallic ferromagnets
• Theory of light-induced effective magnetic field in Rashba ferromagnets
• Inverse-Faraday effect from the orbital angular momentum of light
• Effective Hamiltonian theory for nonreciprocal light propagation in magnetic Rashba conductor
• Topological changes of two-dimensional magnetic textures
• Nonlinear magneto-optical response to light carrying orbital angular momentum
• Photocontrol of spin scalar chirality in centrosymmetric itinerant magnets
• Coupling theory of emergent spin electromagnetic field and electromagnetic field
• Laser-induced torques in spin spirals
• Theory of electron transport and magnetization dynamics in metallic ferromagnets
• Optical Manipulation of Magnetic Vortex Visualized in situ by 4D Electron Microscopy