Ferroelastic control of magnetic domain structure: Direct imaging by magnetic force microscopy

Seddon, S. D., Haines, C. R. S. ORCID: https://orcid.org/0000-0002-1274-8329, Hase, T. P. A., Lees, M. R., Eng, L. M., Alexe, M. and Carpenter, M. A. (2024) Ferroelastic control of magnetic domain structure: Direct imaging by magnetic force microscopy. Physical Review B, 110 (6). ISSN 2469-9950

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Abstract

Pyrrhotite Fe7S8 provides an example of exceptionally strong magnetoelastic coupling through pinning of ferromagnetic domains by ferroelastic twins. Using direct imaging of magnetic domains by magnetic force microscopy (MFM), and thus elucidating the underlying ferroelastic domains, the mechanism by which this coupling controls the local magnetic switching behavior of regions on the pyrrhotite surface is revealed, and leads to quantitative fitting of field-dependent MFM phase shifts with bulk magnetometry data. It is shown that characteristic inflection points in the magnetometry data along certain directions, in particular [1¯20]h∗ of the hexagonal parent structure, are in fact caused by ferroelastic pinning of the magnetic moments.

Item Type: Article
Additional Information: Funding Information: The work was partly supported by the Engineering and Physical Sciences Research Council (EPSRC, UK) through Grants No. EP/M022706/1 (M.A.) and No. EP/T027207/1 (M.A.).
Uncontrolled Keywords: electronic, optical and magnetic materials,condensed matter physics ,/dk/atira/pure/subjectarea/asjc/2500/2504
Faculty \ School: Faculty of Science > School of Engineering, Mathematics and Physics
UEA Research Groups: Faculty of Science > Research Groups > Quantum Matter
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Depositing User: LivePure Connector
Date Deposited: 25 Oct 2024 09:30
Last Modified: 07 Nov 2024 12:48
URI: https://ueaeprints.uea.ac.uk/id/eprint/97195
DOI: 10.1103/PhysRevB.110.L060404

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