Magnetoelastic resonance as a probe for exchange springs at antiferromagnet-ferromagnet interfaces

Seemann, K.M.; Gomonay, O.; Mokrousov, Y.; Hörner, A.; Valencia, S.; Klamser, P.; Kronast, F.; Arb, A.; Hindmarch, A.T.; Wixforth, A.; Marrows, C.H.; Fischer, P.

Abstract

In prototype ferromagnet-antiferromagnet interfaces we demonstrate that surface acoustic waves can be used to identify complex magnetic phases arising upon evolution of exchange springs in an applied field. Applying sub-GHz surface acoustic waves to study the domain structure of the ferromagnetic layer in exchange-biased bilayers of Ir 20 Mn 80 − Co 60 Fe 20 B 20 , we are able to associate the magnetoelastic resonance with the presence of the exchange spin-spirals in both the ferromagnetic and antiferromagnetic layer. Our findings offer a complementary, integrative insight into emergent magnetic materials for applications of noncollinear spin textures in view of low-energy-consumption spintronic devices.

Citation

Seemann, K., Gomonay, O., Mokrousov, Y., Hörner, A., Valencia, S., Klamser, P., Kronast, F., Arb, A., Hindmarch, A., Wixforth, A., Marrows, C., & Fischer, P. (2022). Magnetoelastic resonance as a probe for exchange springs at antiferromagnet-ferromagnet interfaces. Physical Review B, 105(14), Article 144432. https://doi.org/10.1103/physrevb.105.144432

• Journal Article Type: Article
• Acceptance Date: Mar 30, 2022
• Online Publication Date: Apr 26, 2022
• Publication Date: 2022
• Deposit Date: Apr 27, 2022
• Publicly Available Date: May 10, 2022
• Journal: Physical review B: Condensed matter and materials physics
• Print ISSN: 2469-9950
• Electronic ISSN: 2469-9969
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 105
• Issue: 14
• Article Number: 144432
• DOI: https://doi.org/10.1103/physrevb.105.144432
• Public URL: https://durham-repository.worktribe.com/output/1207550