Magnon-Driven Domain-Wall Motion with the Dzyaloshinskii-Moriya Interaction

Wang, Weiwei; Albert, Maximilian; Beg, Marijan; Bisotti, Marc-Antonio; Chernyshenko, Dmitri; Cortés‐Ortuño, David; Hawke, Ian; Fangohr, Hans

doi:10.1103/physrevlett.114.087203

Cited by 91 publications

(85 citation statements)

References 37 publications

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“…The DMI fieldlike torque is analogous to the DMI magnonic momentum transfer torque studied in Ref. [23]. As evident, the DMI entropic torque is quite susceptible to the DMI constant D and to the DW distortion parameter ξ .…”

Section: Domain-wall Dynamicsmentioning

confidence: 80%

“…The DW moves to the cold edge. Here we study the dynamics of thin DWs which are transparent for magnonic currents in the presence of DMI [23].…”

Section: Domain-wall Dynamicsmentioning

confidence: 99%

“…The DMI leads to a finite distortion of the DW's configuration. The distortion function φ 2 is a linear function of x − q, φ 2 = (x − q)/ξ [23].…”

Section: Domain-wall Dynamicsmentioning

confidence: 99%

“…The role of the DMI in the formation of the reactive and dissipative thermomagnonic torques has been studied in [22]. DMI can also change the direction and the speed of the magnonic current and it generates a magnonic momentum transfer torque [23]. This torque can drastically influence the motion of the DW in a nanowire.…”

Section: Introductionmentioning

confidence: 99%

“…However, these effects are not precisely categorized in the sense of their cumulative impact on the DW's motion, despite the huge interest in DWs, [22][23][24][25][26][27]. Therefore, in the present work we intend to build up a comprehensible description of this impact.…”

Section: Introductionmentioning

confidence: 99%

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Thermally induced magnonic spin current, thermomagnonic torques, and domain-wall dynamics in the presence of Dzyaloshinskii-Moriya interaction

et al. 2016

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Thermally activated domain-wall (DW) motion in magnetic insulators has been considered theoretically, with a particular focus on the role of Dzyaloshinskii-Moriya interaction (DMI) and thermomagnonic torques. The thermally assisted DW motion is a consequence of the magnonic spin current due to the applied thermal bias. In addition to the exchange magnonic spin current and the exchange adiabatic and the entropic spin transfer torques, we also consider the DMI-induced magnonic spin current, thermomagnonic DMI fieldlike torque, and the DMI entropic torque. Analytical estimations are supported by numerical calculations. We found that the DMI has a substantial influence on the size and the geometry of DWs, and that the DWs become oriented parallel to the long axis of the nanostrip. Increasing the temperature smoothes the DWs. Moreover, the thermally induced magnonic current generates a torque on the DWs, which is responsible for their motion. From our analysis it follows that for a large enough DMI the influence of DMI-induced fieldlike torque is much stronger than that of the DMI and the exchange entropic torques. By manipulating the strength of the DMI constant, one can control the speed of the DW motion, and the direction of the DW motion can be switched, as well. We also found that DMI not only contributes to the total magnonic current, but also it modifies the exchange magnonic spin current, and this modification depends on the orientation of the steady-state magnetization. The observed phenomenon can be utilized in spin caloritronics devices, for example in the DMI based thermal diodes. By switching the magnetization direction, one can rectify the total magnonic spin current.

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Section: Domain-wall Dynamicsmentioning

confidence: 80%

“…The DW moves to the cold edge. Here we study the dynamics of thin DWs which are transparent for magnonic currents in the presence of DMI [23].…”

Section: Domain-wall Dynamicsmentioning

confidence: 99%

“…The DMI leads to a finite distortion of the DW's configuration. The distortion function φ 2 is a linear function of x − q, φ 2 = (x − q)/ξ [23].…”

Section: Domain-wall Dynamicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Thermally induced magnonic spin current, thermomagnonic torques, and domain-wall dynamics in the presence of Dzyaloshinskii-Moriya interaction

et al. 2016

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Topological Spin Textures: Basic Physics and Devices

Zhou,

Li,

Liang

et al. 2024

Advanced Materials

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In the face of escalating modern data storage demands and the constraints of Moore's Law, exploring spintronic solutions, particularly the devices based on magnetic skyrmions, has emerged as a promising frontier in scientific research. Since the first experimental observation of skyrmions, topological spin textures have been extensively studied for their great potential as efficient information carriers in spintronic devices. However, significant challenges have emerged alongside this progress. This review aims to synthesize recent advances in skyrmion research while addressing the major issues encountered in the field. Additionally, current research on promising topological spin structures in addition to skyrmions is summarized. Beyond 2D structures, exploration also extends to 1D magnetic solitons and 3D spin textures. In addition, a diverse array of emerging magnetic materials is introduced, including antiferromagnets and 2D van der Waals magnets, broadening the scope of potential materials hosting topological spin textures. Through a systematic examination of magnetic principles, topological categorization, and the dynamics of spin textures, a comprehensive overview of experimental and theoretical advances in the research of topological magnetism is provided. Finally, both conventional and unconventional applications are summarized based on spin textures proposed thus far. This review provides an outlook on future development in applied spintronics.

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Micromagnetic simulation tools: OOMMF, Mumax3, and COMSOL Multiphysics

Hua,

Wu,

2024

Magnetic Nanoparticles in Nanomedicine

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Magnon-Driven Domain-Wall Motion with the Dzyaloshinskii-Moriya Interaction

Cited by 91 publications

References 37 publications

Thermally induced magnonic spin current, thermomagnonic torques, and domain-wall dynamics in the presence of Dzyaloshinskii-Moriya interaction

Thermally induced magnonic spin current, thermomagnonic torques, and domain-wall dynamics in the presence of Dzyaloshinskii-Moriya interaction

Topological Spin Textures: Basic Physics and Devices

Micromagnetic simulation tools: OOMMF, Mumax3, and COMSOL Multiphysics

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