Strain-induced magnetic moment variations at the picosecond timescale
The spin-lattice interaction, a widely observed yet poorly understood phenomenon, has been often studied in the context of the coupling between lattice and magnetic anisotropies. It is also noteworthy that a quasistatic lattice compression is predicted to reduce the magnetic moment of pure ferromagnets such as cobalt and nickel. In this study, we utilize femtosecond laser pump/probe experiments to investigate the ability of a transient strain pulse to change the magnetic moment of a nanometric Co/Ni multilayer film at the picosecond timescale. In good agreement with static density functional theory calculations, our results reveal that a tensile strain acts oppositely to a compressive strain in increasing the magnetic moment, highlighting the efficiency of such magnetoelastic coupling at THz frequencies.
Authors
- Jon Gorchon (ORCID: https://orcid.org/0000-0003-2578-0835)
- Valentin Cherruault (ORCID: https://orcid.org/0000-0002-7380-4398)
- L. Calmels (ORCID: https://orcid.org/0000-0002-0532-0404)
- Stéphane Andrieu (ORCID: https://orcid.org/0000-0003-0373-8193)
- Thomas Pézeril (ORCID: https://orcid.org/0000-0002-2584-9217)
- Thomas Hauet
- K. Dumesnil (ORCID: https://orcid.org/0000-0002-2304-4490)
- Rémi Arras (ORCID: https://orcid.org/0000-0001-6652-0576)
- C. Pfaff
Institutions
- Institut de Physique de Rennes (FR)
- Centre d’Élaboration de Matériaux et d’Études Structurales (FR)
- Institut Jean Lamour (FR)
- Université de Lorraine (FR)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-02-03
- DOI
- https://doi.org/10.1103/physrevb.111.064405
- Citations
- 3
- Primary Topic
- Magneto-Optical Properties and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- Agence Nationale de la Recherche
- Association Neurofibromatoses et Recklinghause