Tokac, M.Kazan, S.Ozkal, B.Al-jawfi, N.Rameev, B.Nicholson, B.Hindmarch, A. T.2026-01-242026-01-2420230937-93471613-7507https://doi.org/10.1007/s00723-023-01601-3https://hdl.handle.net/20.500.12868/5516The 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 circle C\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$300\,<^>{\circ } \hbox {C}$$\end{document} 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.eninfo:eu-repo/semantics/closedAccessArticle10.1007/s00723-023-01601-32-s2.0-85168625919Q3WOS:001168398900001Q3