The Open UniversitySkip to content
 

Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni]n/Co/Ta Multilayer Hall Bars

Li, Sihua; Goolaup, Sarjoosing; Kwon, Jaesuk; Luo, Feilong; Gan, Weiliang and Lew, Wen Siang (2017). Deterministic Spin-Orbit Torque Induced Magnetization Reversal In Pt/[Co/Ni]n/Co/Ta Multilayer Hall Bars. Scientific reports, 7, article no. 972.

Full text available as:
[img]
Preview
PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB) | Preview
DOI (Digital Object Identifier) Link: https://doi.org/10.1038/s41598-017-01079-7
Google Scholar: Look up in Google Scholar

Abstract

Spin-orbit torque (SOT) induced by electric current has attracted extensive attention as an efficient method of controlling the magnetization in nanomagnetic structures. SOT-induced magnetization reversal is usually achieved with the aid of an in-plane bias magnetic field. In this paper, we show that by selecting a film stack with weak out-of-plane magnetic anisotropy, field-free SOT-induced switching can be achieved in micron sized multilayers. Using direct current, deterministic bipolar magnetization reversal is obtained in Pt/[Co/Ni]2/Co/Ta structures. Kerr imaging reveals that the SOT-induced magnetization switching process is completed via the nucleation of reverse domain and propagation of domain wall in the system.

Item Type: Journal Item
Copyright Holders: 2017 The Authors
ISSN: 2045-2322
Project Funding Details:
Funded Project NameProject IDFunding Body
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
MOE-AcRF Tier 2 GrantMOE 2013-T2-2-017Not 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: 59850
Depositing User: Vikram Goolaup
Date Deposited: 26 Mar 2019 16:40
Last Modified: 15 Apr 2019 21:00
URI: http://oro.open.ac.uk/id/eprint/59850
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU