Brownian motion of massive skyrmions forced by spin polarized currents
arXiv:1408.4861 · doi:10.1016/j.aop.2014.10.007
Abstract
We report on the thermal effects on the motion of current-driven massive magnetic skyrmions. The reduced equation for the motion of skyrmion has the form of a stochastic generalized Thiele's equation. We propose an ansatz for the magnetization texture of a non-rigid single skyrmion that depends linearly with the velocity. By utilizing this ansatz it is is found that the mass of skyrmion is closely related to intrinsic skyrmion parameters, such as Gilbert damping, skyrmion-charge and dissipative force. We have found an exact expression for the average drift velocity as well as the mean-square velocity of the skyrmion. The longitudinal and transverse mobility of skyrmions for small spin-velocity of electrons is also determined and found to be independent of the skyrmion mass.
References in corpus (20)
- Skyrmion Lattice in a Chiral Magnet
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- Current-induced skyrmion dynamics in constricted geometries
- Theory of current-driven motion of Skyrmions and spirals in helical magnets
- Skyrmion Lattice in a Doped Semiconductor
- Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
- Thermally Driven Ratchet Motion of Skyrmion Microcrystal and Topological Magnon Hall Effect
- Particle model for skyrmions in metallic chiral magnets: dynamics, pinning and creep
- Skyrmions with varying size and helicity in composition-spread helimagnetic alloys
- Dynamics of an Insulating Skyrmion under a Temperature Gradient
- Inertia and chiral edge modes of a skyrmion magnetic bubble
- AC current generation in chiral magnetic insulators and skyrmion motion induced by the spin Seebeck effect
- Driven skyrmions and dynamical transitions in chiral magnets
- Thermally-Assisted Current-Driven Domain Wall Motion
- Multiscale and multimodel simulation of Bloch point dynamics
- Thermally Assisted Current-Driven Skyrmion Motion
- Magnetization structure of a Bloch point singularity
- Josephson Effects in a Bose-Einstein Condensate of Magnons
- Fluctuations of the Magnetization in Thin Films due to Conduction Electrons
- Magnetization relaxation and geometric forces in a Bose ferromagnet
Cited by in corpus (26)
- Skyrmion-electronics: Writing, deleting, reading and processing magnetic skyrmions toward spintronic applications
- Thermal skyrmion diffusion applied in probabilistic computing
- Skyrmion Gas Manipulation for Probabilistic Computing
- Fast current-induced skyrmion motion in synthetic antiferromagnets
- Thermally stable magnetic skyrmions in multilayer synthetic antiferromagnetic racetracks
- Computing and Memory Technologies based on Magnetic Skyrmions
- Topology-Dependent Brownian Gyromotion of a Single Skyrmion
- Brownian motion of magnetic domain walls and skyrmions, and their diffusion constants
- Photonic orbital angular momentum transfer and magnetic skyrmion rotation
- Quantum fluctuations stabilize Skyrmion textures
- Typical skyrmions versus bimerons: a long-distance competition in ferromagnetic racetracks
- Current-driven skyrmion Depinning in Magnetic Granular Films
- Oscillatory force autocorrelations in equilibrium odd-diffusive systems
- Thermal Brownian Motion of Skyrmion for True Random Number Generation
- Topological dynamics and current-induced motion in a skyrmion lattice
- Chiral Skyrmions Interacting with Chiral Flowers
- Quantum Brownian Motion of a Magnetic Skyrmion
- The Dance of Odd-Diffusive Particles: A Fourier Approach
- Thermal motion of skyrmion arrays in granular films
- Motion-induced inertial effects and topological phase transitions in skyrmion transport
- Reversal of tracer advection and Hall drift in an interacting chiral fluid
- Analytical model of the inertial dynamics of a magnetic vortex
- Topological quantization of the flow of magnetic skyrmions driven by a ratchet-like potential under thermal fluctuations
- Static and Dynamics of Twisted Skyrmion Tubes in Frustrated Magnets
- Over forty years of research towards the understanding of Quantum Brownian Motion -- the contributions of A. O. Caldeira
- Nonhermitian adiabatic perturbation theory of topological quantization of the average velocity of a magnetic skyrmion under thermal fluctuations