RT Journal Article
T1 Magnetoacoustic waves in a highly magnetostrictive Fe72Ga28 thin film
A1 Rovirola, Marc
A1 Khaliq, M. Waqas
A1 Casals, Blai
A1 Begué Gracia, Adrián
A1 Biskup Zaja, Nevenko
A1 Coton, Noelia
A1 Hernàndez, Joan Manel
A1 Niño, Miguel Angel
A1 Foerster, Michael
A1 Hernández-Mínguez, Alberto
A1 Ranchal Sánchez, Rocío
A1 Costache, Marius V.
A1 García-Santiago, Antoni
A1 Macià, Ferran
AB The interaction between surface acoustic waves and magnetization offers an efficient route for electrically controlling magnetic states. Here, we demonstrate the excitation of magnetoacoustic waves in galfenol thin films with a 28 at. % gallium composition, corresponding to the second magnetostrictive peak in bulk samples. We quantify the amplitude of the induced magnetization oscillations using magnetic imaging in an x-ray photoelectron microscope and estimate the dynamic magnetoelastic constants through micromagnetic simulations. Our findings demonstrate the potential of galfenol thin films for magnonic applications and reveal that, despite strong magnetoelastic coupling, magnetic interactions and spin-wave dispersion relations significantly influence the overall amplitude of magnetoacoustic waves.
PB AIP Publishing
YR 2025
FD 2025-02-01
LK https://hdl.handle.net/20.500.14352/122342
UL https://hdl.handle.net/20.500.14352/122342
LA eng
NO M. Rovirola, M.W. Khaliq, B. Casals, A. Begué, N. Biskup, N. Coton, J.M. Hernàndez, M.A. Niño, M. Foerster, A. Hernández-Mínguez, R. Ranchal, M.V. Costache, A. García-Santiago, and F. Macià, “Magnetoacoustic waves in a highly magnetostrictive Fe72Ga28 thin film,” APL Materials 13(2), 021112 (2025).
NO PRE2021-097235Margarita Salas fellowship
NO Ministeio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
NO Generalitat de Catalunya
DS Docta Complutense
RD 11 jul 2025