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Asymmetrical domain wall propagation in bifurcated PMA wire structure due to the Dzyaloshinskii-Moriya interaction

Kwon, J.; Goolaup, S.; Gan, W. L.; Chang, C. H.; Roy, K. and Lew, W. S. (2017). Asymmetrical domain wall propagation in bifurcated PMA wire structure due to the Dzyaloshinskii-Moriya interaction. Applied Physics Letters, 110(23), article no. 232402.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1063/1.4984750
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Abstract

Controlling domain wall (DW) motion in complex magnetic network structures is of paramount significance for the development of spin-based devices. Here, we report on the dynamics of a propagating DW in a bifurcated ferromagnetic wire with perpendicular magnetic anisotropy (PMA). The Dzyaloshinskii-Moriya interaction (DMI) in the wire structure induces a tilt angle to the injected DW, which leads to a quasi-selective propagation through the network branch. The DW tilting causes a field interval between DWs to arrive at Hall bars in the individual branches. Micromagnetic results further show that by tailoring the strength of the DMI, the control of DW dynamics in the PMA complex network structures can be achieved.

Item Type: Journal Item
Copyright Holders: 2017 The Authors
ISSN: 1077-3118
Project Funding Details:
Funded Project NameProject IDFunding Body
MOE-AcRF Tier 2 GrantMOE 2013-T2-2-017Not Set
Competitive Research Programme (Non-volatile Magnetic Logic and Memory Integrated Circuit Devices)NRF-CRP9- 2011-01Singapore National Research Foundation, Prime Minister’s Office
Industry-IHL Partnership ProgramNRF2015-IIP001-001Not Set
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 59846
Depositing User: Vikram Goolaup
Date Deposited: 26 Mar 2019 16:19
Last Modified: 18 Apr 2019 03:32
URI: http://oro.open.ac.uk/id/eprint/59846
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