<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Four samples of austenite coatings deposited by reactive magnetron sputtering on silicon substrate at four different temperatures and pressures were investigated by ferromagnetic resonance (FMR) method at room temperature. The expanded austenite phase S (γ
                        N) layers with thickness in the 160–273 nm range and concentration of magnetic atoms: 72 % Fe, 18 % Cr and 10 % Ni, were obtained. The coatings with nanometric size grains were strongly textured and grown mostly in [100] direction, perpendicular to the sample surface. Intense FMR spectra were recorded at various angles between the static magnetic field direction and the sample surface. A strong magnetic anisotropy of the main uniform FMR mode was observed and the effective magnetization 4πM
                        eff determined. Spin wave resonance (SWR) modes were observed in all investigated samples in out-of-plane geometry of the magnetic field. The resonance fields of SWR modes in our samples varied linearly with the spin wave mode number. The value of the effective magnon stiffness constant was determined assuming a parabolic shape of the magnetization variation across the sample thickness.</p></abstract>

Four samples of austenite coatings deposited by reactive magnetron sputtering on silicon substrate at four different temperatures and pressures were investigated by ferromagnetic resonance (FMR) method at room temperature. The expanded austenite phase S (γ
                        N) layers with thickness in the 160–273 nm range and concentration of magnetic atoms: 72 % Fe, 18 % Cr and 10 % Ni, were obtained. The coatings with nanometric size grains were strongly textured and grown mostly in [100] direction, perpendicular to the sample surface. Intense FMR spectra were recorded at various angles between the static magnetic field direction and the sample surface. A strong magnetic anisotropy of the main uniform FMR mode was observed and the effective magnetization 4πM
                        eff determined. Spin wave resonance (SWR) modes were observed in all investigated samples in out-of-plane geometry of the magnetic field. The resonance fields of SWR modes in our samples varied linearly with the spin wave mode number. The value of the effective magnon stiffness constant was determined assuming a parabolic shape of the magnetization variation across the sample thickness.

Ferromagnetic and spin wave resonances in thin layer of expanded austenite phase

Institute of Physics, West Pomeranian University of Technology, al. Piastów 48, 70-311, Szczecin, Poland

Department of Solid State, Faculty of Physics, University of Athens, Panepistimiopolis, 15 784, Greece

Institute of Materials Science and Engineering, West Pomeranian University of Technology, al. Piastów 17, 70-310, Szczecin, Poland

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Ferromagnetic and spin wave resonances in thin layer of expanded austenite phase"}

Four samples of austenite coatings deposited by reactive magnetron sputtering on silicon substrate at four different temperatures and pressures were...

Ferromagnetic and spin wave resonances in thin layer of expanded austenite phase

Pubblicato online: 22 lug 2014

Pagine: 198 - 205

DOI: https://doi.org/10.2478/s13536-013-0188-3

Parole chiave
expanded austenite, thin layer, ferromagnetic resonance, spin waves

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Ferromagnetic and spin wave resonances in thin layer of expanded austenite phase

Pubblicato online: 22 lug 2014

Pagine: 198 - 205

DOI: https://doi.org/10.2478/s13536-013-0188-3

Parole chiaveexpanded austenite, thin layer, ferromagnetic resonance, spin waves

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
expanded austenite, thin layer, ferromagnetic resonance, spin waves