Dissipationless Multiferroic Magnonics

Abstract

We propose that the magnetoelectric effect in multiferroic insulators with coplanar antiferromagnetic spiral order, such as BiFeO${}_3$, enables electrically controlled dissipationless magnonics. Applying an oscillating electric field in these materials with frequency as low as household frequency can activate Goldstone modes that manifests fast planar rotations of spins, whose motion is not obstructed by crystalline anisotropy. Combining with spin ejection mechanisms, such a fast planar rotation can deliver electricity at room temperature over a distance of the magnetic domain, which is free from the energy loss due to Gilbert damping.

7 pages, 4 figures, supplementary materials included

References in corpus (6)

• Spin current and magneto-electric effect in non-collinear magnets
• Weak ferromagnetism and magnetoelectric coupling in bismuth ferrite
• Electric-field-induced spin-flop in BiFeO3 single crystals at room-temperature
• Electric-field control of spin waves at room temperature in multiferroic BiFeO3
• Optical coupling to spin waves in the cycloidal multiferroic BiFeO3
• Exact treatment of magnetism-driven ferroelectricity in the one-dimensional compass model

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• Spin-flip reflection at the normal metal-spin superconductor interface
• Interaction Between a Domain Wall and Spin Supercurrent in Easy-cone Magnets
• Ginzburg-Landau-type theory of non-polarized spin superconductivity
• Manipulation of magnetic Skyrmions with a Scanning Tunneling Microscope
• Spin Quenching and Transport by Hidden Dzyaloshinskii-Moriya Interactions
• Effects of magnon-magnon interactions in a noncollinear magnet induced by combination of a symmetric and an antisymmetric exchange interaction
• Geometric phase driven Josephson junction: Possible experimental scheme for the search of spin superfluidity
• Superfluid-like spin transport in the dynamic states of easy-axis magnets