Impact of Spin Wave Dispersion on Surface Acoustic Wave Velocity - Archive ouverte HAL Access content directly
Journal Articles Physical Review Applied Year : 2022

Impact of Spin Wave Dispersion on Surface Acoustic Wave Velocity

Abstract

The dependence of the velocity of surface acoustic waves (SAWs) as a function of an external applied magnetic field is investigated in a Fe thin film epitaxially grown on a piezoelectric GaAs substrate. The SAW velocity is observed to strongly depend on both the amplitude and direction of the magnetic field. To interpret the experimental data a phenomenological approach to the relative change in SAW velocity is implemented. We find that the experimental velocity variation can be well reproduced provided that the spin wave dispersion is taken into account. The validity of this phenomenological model is attested by the comparison with a fully magnetoelastic one. Non-reciprocity of SAW velocity is also addressed both experimentally and theoretically.
Fichier principal
Vignette du fichier
article_Fe_2022.pdf (774.83 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03920073 , version 1 (03-01-2023)

Identifiers

Cite

Pauline Rovillain, Jean-Yves Duquesne, Louis Christienne, Mahmoud Eddrief, Maria Gloria Pini, et al.. Impact of Spin Wave Dispersion on Surface Acoustic Wave Velocity. Physical Review Applied, 2022, 18 (6), pp.064043. ⟨10.1103/PhysRevApplied.18.064043⟩. ⟨hal-03920073⟩
12 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More