Response of the chiral soliton lattice to spin polarized currents

Abstract

Spin polarized currents originate a spin-transfer torque that enables the manipulation of magnetic textures. Here we theoretically study the effect of a spin-polarized current on the magnetic texture corresponding to a chiral soliton lattice in a monoaxial helimagnet under a transverse magnetic field. At sufficiently small current density the chiral soliton lattice reaches a steady motion state with a velocity proportional to the intensity of the applied current, the mobility being independent of the density of solitons and the magnetic field. This motion is accompanied with a small conical distortion of the chiral soliton lattice. At large current density the spin-transfer torque destabilizes the chiral soliton lattice, driving the system to a ferromagnetic state parallel to the magnetic field. We analyze how the deformation of the chiral soliton lattice depends on the applied current density. The destruction of the chiral soliton lattice under current could serve as a possible erasure mechanisms for spintronic applications.

arXiv comment13 pages, 8 figures

References in corpus (27)

• Skyrmion Lattice in a Chiral Magnet
• The design and verification of Mumax3
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
• Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
• Emergent electrodynamics of skyrmions in a chiral magnet
• Theory of current-driven motion of Skyrmions and spirals in helical magnets
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• The 2020 Skyrmionics Roadmap
• Precursor phenomena at the magnetic ordering of the cubic helimagnet FeGe
• Electrical detection of magnetic skyrmions by non-collinear magnetoresistance
• Current-induced magnetization dynamics in disordered itinerant ferromagnets
• Magnetic phase transitions in single crystals of the chiral helimagnet Cr1/3NbS2
• Formation of a magnetic soliton lattice in copper metaborate
• Influence of a Uniform Current on Collective Magnetization Dynamics in a Ferromagnetic Metal
• Field-induced Commensurate-Incommensurate phase transition in a Dzyaloshinskii-Moriya spiral antiferromagnet
• Chiral Soliton Lattice Formation in Monoaxial Helimagnet Yb(Ni${}_{1-x}$Cu${}_x$)${}_3$Al${}_9$
• Spin-transfer torque-driven motion, deformation, and instabilities of magnetic skyrmions at high currents
• Understanding the H-T phase diagram of the mono-axial helimagnet
• Spin Structure of the Anisotropic Helimagnet Cr${}_{1/3}$NbS${}_2$ in a Magnetic Field
• Incommensurate--commensurate transitions in the mono-axial chiral helimagnet driven by the magnetic field
• On quantifying the topological charge in micromagnetics using a lattice-based approach
• Combing the helical phase of chiral magnets with electric currents
• Nucleation, instability, and discontinuous phase transitions in monoaxial helimagnets with oblique fields
• Stability of the skyrmion lattice near the critical temperature in cubic helimagnets
• Tunable spin dynamics in chiral soliton lattice
• Current-induced dynamics of spiral magnet

Cited by in corpus (4)

• Comparative Electronic Structures of the Chiral Helimagnets Cr1/3NbS2 and Cr1/3TaS2
• Helitronics for classical and unconventional computing
• The continuum of metastable conical states of monoaxial chiral helimagnets
• Driven particle dispersion in narrow disordered racetracks