Transport magnetic currents driven by moving kink crystal in chiral helimagnets

Abstract

We show that the bulk transport magnetic current is generated by the moving magnetic kink crystal (chiral soliton lattice) formed in the chiral helimagnet under the static magnetic field applied perpendicular to the helical axis. The current is caused by the non-equilibrium transport momentum with the kink mass being determined by the spin fluctuations around the kink crystal state. An emergence of the transport magnetic currents is then a consequence of the dynamical off-diagonal long range order along the helical axis. We derive an explicit formula for the inertial mass of the kink crystal and the current in the weak field limit.

arXiv comment5 pages, 3 figures, to appear in Phys. Rev. B

References in corpus (12)

• Spintronics: Fundamentals and applications
• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Theory of Current-Driven Domain Wall Motion: A Poorman's Approach
• Anatomy of Spin-Transfer Torque
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• Spin Transfer Torque for Continuously Variable Magnetization
• Non-collinear spin transfer in Co/Cu/Co multilayers
• Equilibrium spin currents and magnetoelectric effect in magnetic nanostructures
• Spin Dynamics and Spin Transport
• Persistent Spin Currents in Helimagnets
• Correlations in the Sine-Gordon Model with Finite Soliton Density

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