Exchange Anisotropy in NiFe Films on (100) NiO Single-Crystal Substrate
S M. Rezende, M A. Lucena, A Azevedo, A B. Oliveria, F M. de Aguiar, William F. Egelhoff Jr.
The exchange anisotropy in a Ni81Fe19 film sputtered on a (100) NiO single-crystal substrate is investigated with MOKE magnetometry, ferromagnetic resonance (FMR) and Brillouin light scattering (BLS). The dependencies of the spin-wave frequency and FMR resonance field with the angle of the in-place field are strikingly different than in polycrystalline samples. The BLS and FMR data are interpreted with a model that includes a planar domain wall in the AF substrate while the exhange field in the single-crystal sample is quite larger than in NiFe films on polycrystalline NiO layers, the domain wall field is smaller.
Journal of Magnetism and Magnetic Materials
magnetic excitations, multilayers-metallic, resonance-ferromagnetic, spin waves
, Lucena, M.
, Azevedo, A.
, Oliveria, A.
, de Aguiar, F.
and Egelhoff Jr., W.
Exchange Anisotropy in NiFe Films on (100) NiO Single-Crystal Substrate, Journal of Magnetism and Magnetic Materials
(Accessed December 11, 2023)