Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, EpiSciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Ferromagnetic resonance of CoFeB/Ta/CoFeB spin valves versus CoFeB film

Abstract : In MgO/CoFeB/MgO/Ta (single layer) and MgO/CoFeB/Ta/CoFeB/MgO/Ta spin valve (bilayer), the orientation dependences of ferromagnetic resonance (FMR) have been analyzed. Magnetic anisotropy constants as well as damping constants have been extracted. The differences between the anisotropy constants in single-layer film and spin valve MgO/CoFeB/Ta/CoFeB/MgO/Ta are explained by dipole magnetic interaction between ferromagnetic layers. The main part of the linewidth corresponds to inhomogeneous widening, while smaller part is provided by interface exchange fluctuations. The FMR lineshape can be explained by standard FMR Lorenz line and nonresonant absorption provided by inverse spin Hall effect.
Complete list of metadata

Cited literature [34 references]  Display  Hide  Download
Contributor : Aurore Emonot Connect in order to contact the contributor
Submitted on : Monday, March 18, 2019 - 8:49:58 AM
Last modification on : Friday, January 7, 2022 - 3:47:05 AM



R. B. Morgunov, G L L'Vova, A. D. Talantsev, y. Lu, X. Devaux, et al.. Ferromagnetic resonance of CoFeB/Ta/CoFeB spin valves versus CoFeB film. Thin Solid Films, Elsevier, 2017, 640, pp.8-13. ⟨10.1016/j.tsf.2017.08.029⟩. ⟨hal-02011574⟩



Record views