Daeng-Am, W., Chureemart, P., Chantrell, R. W. orcid.org/0000-0001-5410-5615 et al. (1 more author) (2019) Granular micromagnetic model for perpendicular recording media:Quasi-static properties and media characterisation. Journal of Physics D: Applied Physics. 425002. ISSN 0022-3727
Abstract
Granular magnetic recording media with perpendicular anisotropy are the basis of information storage in hard drive. This is the case for current media and future technologies such as heat assisted magnetic recording, microwave assisted magnetic recording and heated dots. It is therefore important to understand the common methods of media characterisation, which often use quasi-static magnetic measurements. A granular micromagnetic model based on the kinetic Monte Carlo approach is developed to investigate the timescales relevant to these measurements. The model is used to investigate the effects of the microstructure and the intergranular interactions on the magnetic properties including the angular dependence of the magnetisation and the time dependence of the coercivity. The latter is shown to be strongly dependent on intergranular interactions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
Keywords: | intergranular exchange interaction,kinetic Monte Carlo,switching field distribution, easy axis distribution |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > York Institute for Materials Research |
Depositing User: | Pure (York) |
Date Deposited: | 12 Mar 2020 09:20 |
Last Modified: | 24 Oct 2024 00:08 |
Published Version: | https://doi.org/10.1088/1361-6463/ab33d6 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1361-6463/ab33d6 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:158346 |
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