Year: 2025
Type: article
Abstract: 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.
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4407086245