Application of local transverse fields for domain wall control in ferromagnetic nanowire arrays

Kunz, Andrew; Vogeler-Wunsch, Jesse

doi:10.1063/1.4766173

Cited by 3 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been shown that there exists an inter-wire coupling between two DWs due to their magnetostatic interaction when two nanowires are placed very close to each other. [10][11][12] The inter-wire coupling between the two DWs is spring-like in nature, 13,14 and when one of the DWs is driven by current, the other DW in the current-free nanowire will be remote-driven to move in the same direction. 15 Here, we investigate the intra-wire interactions between multiple transverse DWs in a two-nanowire system by micromagnetic simulations.…”

mentioning

confidence: 99%

Remote driving of multiple magnetic domain walls due to topological interaction

Purnama

Murapaka

Lew

et al. 2014

Applied Physics Letters

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 99%

Remote driving of multiple magnetic domain walls due to topological interaction

Purnama

Murapaka

Lew

et al. 2014

Applied Physics Letters

View full text Add to dashboard Cite

show abstract

Selection and Control of Individual Domain Walls in Nanowire Arrays via Asymmetric Depinning Fields

Kunz

Kutzke

et al. 2016

IEEE Trans. Magn.

View full text Add to dashboard Cite

Dynamics of current-driven magnetic domain walls and skyrmions

Purnama¹

View full text Add to dashboard Cite

The dynamics of current-driven magnetic domain walls and skyrmions are both topics of high interest in the magnetism community due to the possibility of employing them in novel high-density non-volatile memory devices. One such device is the well-known racetrack memory, where the information is stored in a ferromagnetic nanowire as compared to the conventional harddisk memory, while the operation is mediated via the injection of current to the nanowire. In a domain wall-based racetrack memory, the information is represented by magnatic domains that are separated by domain walls, while in a skyrmionbased racetrack memory, the information is represented by the presence of the skyrmions themselves. However, to be able to realize such devices, it is very important to have a complete understanding of both the domain wall and dynamics under the application of current. At present, the investigation of domain wall dynamics is mainly focused on finding additional driving mechanisms to improve its mobility. In the case of skyrmion dynamics, the research is still in the very early stage, although it has been shown that it is possible to inject individual skyrmions individually which brings skyrmion-based devices closer to realization. In this thesis, the dynamics of current driven magnetic domain walls and skyrmions in various nanostructures are investigated. We show by micromagnetic simulations that it is possible to drive multiple domain walls in a multi-nanowire system by just applying current to one of the nanowires. The phenomenon is made possible due to the magnetostatic coupling between the domain walls. When materials with in-plane anisotropy are considered, the coupling is realized when the nanowires are placed parallel to each other, and the technique can be further utilized to drive several domain walls in the current-free nanowire. When materials with strong perpendicular magnetization anisotropy are used, the phenomenon is realized by stacking the nanowires vertically, and the coupling between the

show abstract

Application of local transverse fields for domain wall control in ferromagnetic nanowire arrays

Cited by 3 publications

References 31 publications

Remote driving of multiple magnetic domain walls due to topological interaction

Remote driving of multiple magnetic domain walls due to topological interaction

Selection and Control of Individual Domain Walls in Nanowire Arrays via Asymmetric Depinning Fields

Dynamics of current-driven magnetic domain walls and skyrmions

Contact Info

Product

Resources

About