Surface anisotropy and spin wave resonance in submicron amorphous wires

0521292 - FZÚ 2020 RIV NL eng J - Journal Article
Kraus, Luděk - Kopeček, Jaromír
Surface anisotropy and spin wave resonance in submicron amorphous wires.
Journal of Magnetism and Magnetic Materials. Roč. 473, Mar (2019), s. 284-290. ISSN 0304-8853. E-ISSN 1873-4766
R&D Projects: GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088
Grant - others:FUNBIO(XE) CZ.2.16/3.1.00/21568
Institutional support: RVO:68378271
Keywords : ferromagnetic resonance * submicron amorphous wires * spin waves * surface anisotropy
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.717, year: 2019
Method of publishing: Limited access
https://doi.org/10.1016/j.jmmm.2018.10.045

The influence of surface magnetic anisotropy on ferromagnetic resonance (FMR) in submicron wires is investigated both theoretically and experimentally. An analytical formula for resonance fields of radial spin waves in a long axially magnetized circular cylinder is obtained. Three types of surface anisotropy with the easy direction along one of the cylindrical coordinates are considered. For sufficiently strong surface anisotropy with hard direction parallel to the cylinder axis the surface spin wave mode is observed.
Permanent Link: http://hdl.handle.net/11104/0305922