Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films

By A. Thiaville, S. Rohart, Emilie Jué, Vincent Cros, Albert Fert. 2012

964 citations recorded by the source corpus.

We explore a new type of domain wall structure in ultrathin films with perpendicular anisotropy, that is influenced by the Dzyaloshinskii-Moriya interaction due to the adjacent layers. This study is performed by numerical and analytical micromagnetics. We show that these walls can behave like Néel walls with very high stability, moving in stationary conditions at large velocities under large fields. We discuss the relevance of such walls, that we propose to call Dzyaloshinskii domain walls, for current-driven domain wall motion under the spin Hall effect.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/daa4f9c1212f84aa3666ebced044d5e7e864d328

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In Atomic and Molecular Physics, and Optics

In Condensed Matter Physics

In Electrical and Electronic Engineering

Citations in the corpus

Room-temperature chiral magnetic skyrmions in ultrathin magnetic nanostructures. (2016, background): “iii/ Large current induced spin orbit torques are present [47, 48] which results in fast current induced DWmotion [49, 50].”
Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (2018, methodology): “6 nm Co film (Thiaville et al., 2012), considering only DL SOT.”
Skyrmions in magnetic multilayers (2017, background): “In systems with DMI, H1⁄2 is increased and instead a velocity plateau is first reached at H1⁄2 [131], as shown in Fig.”
Current-driven dynamics of chiral ferromagnetic domain walls. (2013, neutral): “SHE SHE SLT H m    × − = 0 γ τ , (7)”
Very large Dzyaloshinskii-Moriya interaction in two-dimensional Janus manganese dichalcogenides and its application to realize skyrmion states (2019, background): “merging 2D ferromagnetic materials. * Author to whom correspondence should be addressed. Electronic mail: hongxin.yang.spintec@gmail.com 2 Introduction Chiral magnetic structures such as domain walls [1, 2], helical spirals [3, 4] and magnetic skyrmions [5 , 6 , 7 ] hold promise for potential applic”
Spin-Orbit Torque Efficiency in Compensated Ferrimagnetic Cobalt-Terbium Alloys (2016, result): “This result is consistent with the fact that the effective DMI field [32] HDMI 1⁄4 D=Mstμ0Δ, where D is the DMI energy density and Δ is the DW width, would become divergent whenMs approaches zero.”