Two Magnon Scattering Contribution to the Ferromagnetic Resonance Linewidth of Pt(Ir)/CoFeTaB/Ir(Pt) Thin Films

Tokaç, M.; Kazan, S.; Özkal, B.; Al-jawfi, N.; Rameev, B.; Nicholson, B.; Hindmarch, A. T.

Abstract

The magnetic properties of Pt/CoFeTaB/Ir and Ir/CoFeTaB/Pt trilayer thin films have been studied using angular- and temperature-dependent ferromagnetic resonance. This enables quantitative determination of the various contributions to the magnetic behavior, including separating, the effective Gilbert damping, inhomogeneous damping, and two-magnon-scattering contributions to the magnetic dissipation. As-deposited films show behavior consistent with significant incorporation of Ir into CoFeTaB only when the Ir layer is deposited first. Annealing of the structures at 300∘C causes only minor structural and magnetic modification when Pt is deposited first, and more pronounced changes, attributed to thermally-driven out-diffusion of Ir from CoFeTaB, are found when Ir is deposited first. A holistic consideration of the magnetic resonance behavior can provide detailed information on the atomic-scale structure in magnetic thin-film devices.

Citation

Tokaç, M., Kazan, S., Özkal, B., Al-jawfi, N., Rameev, B., Nicholson, B., & Hindmarch, A. T. (2023). Two Magnon Scattering Contribution to the Ferromagnetic Resonance Linewidth of Pt(Ir)/CoFeTaB/Ir(Pt) Thin Films. Applied Magnetic Resonance, 54(10), 1053-1064. https://doi.org/10.1007/s00723-023-01601-3

• Journal Article Type: Article
• Acceptance Date: Aug 14, 2023
• Online Publication Date: Aug 23, 2023
• Publication Date: 2023-10
• Deposit Date: Sep 22, 2023
• Publicly Available Date: Aug 24, 2024
• Journal: Applied Magnetic Resonance
• Print ISSN: 0937-9347
• Electronic ISSN: 1613-7507
• Publisher: Springer
• Peer Reviewed: Peer Reviewed
• Volume: 54
• Issue: 10
• Pages: 1053-1064
• DOI: https://doi.org/10.1007/s00723-023-01601-3
• Public URL: https://durham-repository.worktribe.com/output/1746223