Stabilizing current-driven steady flows of 180${}^{\circ }$ domain walls in spin valves by interfacial Dzyaloshinskii-Moriya interaction

Abstract

Modulations of interfacial Dzyaloshinskii-Moriya interaction (iDMI) on current-driven dynamics of 180${}^{\circ }$ domain walls (180DWs) in long and narrow spin valves (LNSVs) with heavy-metal caplayers are systematically investigated. We focus on LNSVs with in-plane magnetic anisotropy in their free layers. For planar-transverse polarizers (pinned layers of LNSVs), the Walker breakdown can be postponed considerably (practical infinity) by iDMI. More interestingly, the originally unstable traveling mode is also stabilized by iDMI with high saturation velocity thus serves as fast carrier of information. For parallel polarizers, the Walker limit is increased and the corresponding modifications of iDMI to wall velocity in both steady and precessional flows of 180DWs are provided. For perpendicular polarizers, precessional flow of 180DWs is absent due to the stability of stationary mode beyond the modified Walker limit. For LNSVs with perpendicular magnetic anisotropy in their free layers, similar results are obtained. Our findings open new possibilities for developing magnetic nanodevices based on 180DW propagation with low energy consumption and high robustness.

arXiv comment7 pages, 3 fugures

References in corpus (31)

• Current-driven dynamics of chiral ferromagnetic domain walls
• Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
• Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
• Switching a spin-valve back and forth by current-induced domain wall motion
• Domain wall tilting in the presence of the Dzyaloshinskii-Moriya interaction in out-of-plane magnetized magnetic nanotracks
• The nature of domain walls in ultrathin ferromagnets revealed by scanning nanomagnetometry
• Vertical current induced domain wall motion in MgO-based magnetic tunnel junction with low current densities
• Soliton-like magnetic domain wall motion induced by the interfacial Dzyaloshinskii-Moriya interaction
• Current-Induced Dynamics and Chaos of Antiferromagnetic Bimerons
• Switching the magnetic configuration of a spin valve by current induced domain wall motion
• High domain wall velocities due to spin currents perpendicular to the plane
• Very large domain wall velocities in Pt/Co/Gd trilayers with Dzyaloshinskii-Moriya interaction
• Unravelling Dzyaloshinskii-Moriya interaction and chiral nature of Graphene/Cobalt interface
• Velocity asymmetry of Dzyaloshinskii domain walls in the creep and flow regimes
• Rapid Domain Wall Motion in Permalloy Nanowires Excited by Spin-Polarized Current Applied Perpendicular to the Nanowire
• Velocity enhancement by synchronization of magnetic domain walls
• Tuning domain wall velocity with Dzyaloshinskii-Moriya interaction
• Modification of Dzyaloshinskii-Moriya interaction stabilized domain wall chirality by driving currents
• Dependence of Dzyaloshinskii-Moriya interaction on the oxygen coverage in Pt/Co/MOx trilayers
• Self-consistent calculation of spin transport and magnetization dynamics
• Analytical description of ballistic spin currents and torques in magnetic tunnel junctions
• Universality of Dzyaloshinskii-Moriya interaction effect over domain-wall creep and flow regimes
• Statics and field-driven dynamics of transverse domain walls in biaxial nanowires under uniform transverse magnetic fields
• Spin-Cherenkov effect in a magnetic nanostrip with interfacial Dzyaloshinskii-Moriya interaction
• Time-resolved observation of fast domain-walls driven by vertical spin currents in short tracks
• General planar transverse domain walls realized by optimized transverse magnetic field pulses in magnetic biaxial nanowires
• Engineering planar transverse domain walls in biaxial magnetic nanostrips by tailoring transverse magnetic fields with uniform orientation
• Determination of the Dzyaloshinskii-Moriya interactions
• Understanding current-driven dynamics of magnetic Néel walls in heavy metal/ferromagnetic metal/oxide trilayers
• Ultra-high differential mobility and velocity of Néel walls in spin valves with planar-transverse polarizers under low perpendicularly injected currents
• Survey of 360${}^{\circ }$ domain walls in magnetic heterostructures: topology, chirality and current-driven dynamics

Cited by in corpus (3)

• Chiral domain wall dynamics in magnetic heterostructures with bulk Dzyaloshinskii-Moriya interactions
• Slonczewski-spin-current driven dynamics of 180${}^{\circ }$ domain walls in spin valves with interfacial Dzyaloshinskii-Moriya interaction
• Fast reversal of Néel vectors in antiferromagnets via domain-wall motion driven by vertically injected spin currents