A Novel Method for the Injection and Manipulation of Magnetic Charge States in Nanostructures

Title: A Novel Method for the Injection and Manipulation of Magnetic Charge States in Nanostructures
Author(s): Carter-Gartside, J
Burn, DM
Cohen, LF
Branford, WR
Item Type: Journal Article
Abstract: Realising the promise of next-generation magnetic nanotechnologies is contingent on the development of novel methods for controlling magnetic states at the nanoscale. There is currently demand for simple and flexible techniques to access exotic magnetisation states without convoluted fabrication and application processes. 360° domain walls (metastable twists in magnetisation separating two domains with parallel magnetisation) are one such state, which is currently of great interest in data storage and magnonics. Here, we demonstrate a straightforward and powerful process whereby a moving magnetic charge, provided experimentally by a magnetic force microscope tip, can write and manipulate magnetic charge states in ferromagnetic nanowires. The method is applicable to a wide range of nanowire architectures with considerable benefits over existing techniques. We confirm the method’s efficacy via the injection and spatial manipulation of 360° domain walls in Py and Co nanowires. Experimental results are supported by micromagnetic simulations of the tip-nanowire interaction.
Publication Date: 12-Sep-2016
Date of Acceptance: 12-Aug-2016
ISSN: 2045-2322
Publisher: Nature Publishing Group
Journal / Book Title: Scientific Reports
Volume: 6
Copyright Statement: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Sponsor/Funder: The Leverhulme Trust
Funder's Grant Number: RPG_2012-692
Keywords: cond-mat.mes-hall
Publication Status: Published
Article Number: 32864
Appears in Collections:Physics
Experimental Solid State
Faculty of Natural Sciences

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