Néel vector waves in antiferromagnetic CuMnAs excited by surface acoustic waves
Magnetoelastic effects in antiferromagnetic CuMnAs are investigated by applying dynamic strain in the 0.01% range through surface acoustic waves in the GaAs substrate. The magnetic state of the CuMnAs/GaAs is characterized by a multitude of submicron-sized domains, which we image by x-ray magnetic linear dichroism combined with photoemission electron microscopy. Within the explored strain range, CuMnAs shows magnetoelastic effects in the form of N\'eel vector waves with micrometer wavelength, which corresponds to an averaged overall spin-axis rotation up to $2.{4}^{\ensuremath{\circ}}$ driven by the time-dependent strain from the surface acoustic wave. Measurements at different temperatures indicate a reduction of the wave amplitude when lowering the temperature. However, no domain wall motion has been detected on the nanosecond timescale.
Authors
- J. M. Hernández (ORCID: https://orcid.org/0000-0002-5165-0199)
- Marc Rovirola (ORCID: https://orcid.org/0000-0001-7172-1452)
- Michael H Foerster (ORCID: https://orcid.org/0000-0002-4147-6668)
- O. J. Amin (ORCID: https://orcid.org/0000-0001-8346-0448)
- Khalid Omari
- Miguel Ángel Niño (ORCID: https://orcid.org/0000-0003-3692-147X)
- Anna Mandziak (ORCID: https://orcid.org/0000-0001-7033-7862)
- V. Novák (ORCID: https://orcid.org/0000-0003-2461-1685)
- Lucía Aballe (ORCID: https://orcid.org/0000-0003-1810-8768)
- K. W. Edmonds (ORCID: https://orcid.org/0000-0002-9793-4170)
- R. P. Campion (ORCID: https://orcid.org/0000-0001-8990-8987)
- Ferran Macià (ORCID: https://orcid.org/0000-0001-5972-4810)
- Simone Finizio (ORCID: https://orcid.org/0000-0002-1792-0626)
- P. Wadley (ORCID: https://orcid.org/0000-0003-4631-9837)
- Sandra Ruiz‐Gómez (ORCID: https://orcid.org/0000-0002-9665-2059)
- Muhammad Waqas Khaliq (ORCID: https://orcid.org/0000-0002-9696-3498)
- Blai Casals (ORCID: https://orcid.org/0000-0002-2941-1861)
- A. Hernández‐Mínguez (ORCID: https://orcid.org/0000-0003-4361-9914)
Institutions
- University of Nottingham (GB)
- Royal Holloway University of London (GB)
- ALBA Synchrotron (Spain) (ES)
- Paul Scherrer Institute (CH)
- Max Planck Institute for Chemical Physics of Solids (DE)
- Paul Drude Institute for Solid State Electronics (DE)
- FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ)
- Universidad de Londres (MX)
- SOLARIS National Synchrotron Radiation Centre
- Institut de Nanociència i Nanotecnologia de la Universitat de Barcelona
- Universitat de Barcelona (ES)
Publication Details
- Journal
- Physical Review Materials
- Published
- 2024-08-13
- DOI
- https://doi.org/10.1103/physrevmaterials.8.084406
- Citations
- 2
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.68
Funders
- European Commission
- Ministerstvo Školství, Mládeže a Tělovýchovy
- Ministerio de Ciencia e Innovación
- Horizon 2020 Framework Programme
- Agencia Estatal de Investigación
- H2020 Future and Emerging Technologies
- HORIZON EUROPE Marie Sklodowska-Curie Actions