| Download | - View final version: Two-axis cavity optomechanical torque characterization of magnetic microstructures (PDF, 1001 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1088/1367-2630/ab4386 |
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| Author | Search for: Hajisalem, G.1; Search for: Losby, J. E.1ORCID identifier: https://orcid.org/0000-0002-0553-7179; Search for: de Oliveira Luiz, G.1ORCID identifier: https://orcid.org/0000-0003-3592-5639; Search for: Sauer, V. T. K.1; Search for: Barclay, P. E.1; Search for: Freeman, M. R.1ORCID identifier: https://orcid.org/0000-0002-6607-6521 |
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| Affiliation | - National Research Council of Canada. Nanotechnology
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| Format | Text, Article |
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| Abstract | Significant new functionality is reported for torsion mechanical tools aimed at full magnetic characterizations of both spin statics and dynamics in micro- and nanostructures. Specifically, two orthogonal torque directions are monitored and the results co-analyzed to separate magnetic moment and magnetic susceptibility contributions to torque, as is desired for characterization of anisotropic three-dimensional structures. The approach is demonstrated through application to shape and microstructural disorder-induced magnetic anisotropies in lithographically patterned permalloy, and will have utility for the determination of important magnetic thin-film and multilayer properties including interface anisotropy and exchange bias. The results reflect remarkable sensitivity of the out-of-plane magnetic torque to the nature of small edge domains perpendicular to the applied field direction, and also contain tantalizing indications of direct coupling to spin dynamics at the frequency of the mechanics. |
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| Publication date | 2019-09-01 |
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| Publisher | IOP Publishing |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 0fe2fd56-c1a0-4057-8f6f-619d6193c7f3 |
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| Record created | 2020-12-04 |
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| Record modified | 2021-03-02 |
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