Symmetric and antisymmetric Dzyaloshinskii-Moriya solitons in anisotropic ferromagnetic wires

Li, Zai-Dong; Bao, Qilong; He, Peng-Bin; Xu, T.F.; Wu, Biao

doi:10.1016/j.jmmm.2020.166981

Cited by 4 publications

(2 citation statements)

References 63 publications

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“…( 27). Recently a phase diagram has been drawn to show how the types of solutions are determined by the DMI and the anisotropic parameters [65]. However in real MHs, generally the iDMI is weaker than other magnetic interactions, thus can be reasonably viewed as a small quantity.…”

Section: Iiid Current-driven 360dw Dynamicsmentioning

confidence: 99%

Survey of 360$^{\circ}$ domain walls in magnetic heterostructures: topology, chirality and current-driven dynamics

Li,

2020

Preprint

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Chirality and current-driven dynamics of topologically nontrivial 360 • domain walls (360DWs) in magnetic heterostructures (MHs) are systematically investigated. For MHs with normal substrates, the static 360DWs are Néel-type with no chirality. While for those with heavy-metal substrates, the interfacial Dzyaloshinskii-Moriya interaction (iDMI) therein makes 360DWs prefer specific chirality. Under in-plane driving charge currents, as the direct result of "full-circle" topology a certain 360DW does not undergo the "Walker breakdown"-type process like a well-studied 180 • domain wall as the current density increases. Alternatively, it keeps a fixed propagating mode (either steady-flow or precessional-flow, depending on the effective damping constant of the MH) until it collapses or changes to other types of solition when the current density becomes too high. Similarly, the field-like spin-orbit torque (SOT) has no effects on the dynamics of 360DWs, while the anti-damping SOT has. For both modes, modifications to the mobility of 360DWs by iDMI and anti-damping SOT are provided.

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Section: Iiid Current-driven 360dw Dynamicsmentioning

confidence: 99%

Survey of 360$^{\circ}$ domain walls in magnetic heterostructures: topology, chirality and current-driven dynamics

Li,

2020

Preprint

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“…Particularly, when three excitation elements have same velocity, i.e. v 1 = v 2 = v 3 , the solution equations (3) will allow the solitons' profiles in three components to possess the characteristics of the well-known kink soliton [8,16,[31][32][33][34] and the dark soliton [3,4,[35][36][37][38]. Therefore, this kind of solitons is so-called KDCSs.…”

mentioning

confidence: 99%

Vector kink-dark complex solitons in a three-component Bose–Einstein condensate

Li¹,

Qin²,

Zhao³

et al. 2021

Commun. Theor. Phys.

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We investigate kink-dark complex solitons (KDCSs) in a three-component Bose–Einstein condensate (BEC) with repulsive interactions and pair-transition (PT) effects. Soliton profiles critically depend on the phase differences between dark solitons excitation elements. We report a type of kink-dark soliton profile which shows a droplet-bubble-droplet with a density dip, in sharp contrast to previously studied bubble-droplets. The interaction between two KDCSs is further investigated. It demonstrates some striking particle transition behaviours during their collision processes, while soliton profiles survive after the collision. Additionally, we exhibit the state transition dynamics between a kink soliton and a dark soliton. These results suggest that PT effects can induce more abundant complex solitons dynamics in multi-component BEC.

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Interactions among periodic optical solitons for the variable coefficient coupled nonlinear Schrödinger equations

Wang

Hu²

2021

Optik

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Symmetric and antisymmetric Dzyaloshinskii-Moriya solitons in anisotropic ferromagnetic wires

Cited by 4 publications

References 63 publications

Survey of 360$^{\circ}$ domain walls in magnetic heterostructures: topology, chirality and current-driven dynamics

Survey of 360$^{\circ}$ domain walls in magnetic heterostructures: topology, chirality and current-driven dynamics

Vector kink-dark complex solitons in a three-component Bose–Einstein condensate

Interactions among periodic optical solitons for the variable coefficient coupled nonlinear Schrödinger equations

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