Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy
Abstract We have carried out an experimental investigation of the spin-wave dynamics in the Au/CoFeB/Au multilayer consisting of a ferromagnetic film with thicknesses of 0.8, 0.9 and 1.0 nm. We employed the Brillouin light scattering spectroscopy to measure the frequency of the spin waves in depende...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-12-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-49859-8 |
| _version_ | 1797377021572022272 |
|---|---|
| author | S. Janardhanan S. Mielcarek H. Głowiński M. Kowacz P. Kuświk M. Krawczyk A. Trzaskowska |
| author_facet | S. Janardhanan S. Mielcarek H. Głowiński M. Kowacz P. Kuświk M. Krawczyk A. Trzaskowska |
| author_sort | S. Janardhanan |
| collection | DOAJ |
| description | Abstract We have carried out an experimental investigation of the spin-wave dynamics in the Au/CoFeB/Au multilayer consisting of a ferromagnetic film with thicknesses of 0.8, 0.9 and 1.0 nm. We employed the Brillouin light scattering spectroscopy to measure the frequency of the spin waves in dependence on the wave vector. Additionally, we characterized the samples by ferromagnetic resonance measurements. We found that the considered samples exhibit perpendicular magnetic anisotropy with low damping, indicating small pumping effects. Furthermore, we found a nonreciprocal dispersion relation pointing at a non-negligible Dzyaloshinskii–Moriya interaction. These results make the Au/CoFeB/Au multilayer a compelling subject for further analysis and as a potential material for future applications within magnonics. |
| first_indexed | 2024-03-08T19:48:00Z |
| format | Article |
| id | doaj.art-0b70673c648e48169d2338f1d96d8fc0 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T19:48:00Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-0b70673c648e48169d2338f1d96d8fc02023-12-24T12:14:46ZengNature PortfolioScientific Reports2045-23222023-12-0113111110.1038/s41598-023-49859-8Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropyS. Janardhanan0S. Mielcarek1H. Głowiński2M. Kowacz3P. Kuświk4M. Krawczyk5A. Trzaskowska6ISQI, Faculty of Physics, Adam Mickiewicz UniversityISQI, Faculty of Physics, Adam Mickiewicz UniversityInstitute of Molecular Physics, Polish Academy of ScienceInstitute of Molecular Physics, Polish Academy of ScienceInstitute of Molecular Physics, Polish Academy of ScienceISQI, Faculty of Physics, Adam Mickiewicz UniversityISQI, Faculty of Physics, Adam Mickiewicz UniversityAbstract We have carried out an experimental investigation of the spin-wave dynamics in the Au/CoFeB/Au multilayer consisting of a ferromagnetic film with thicknesses of 0.8, 0.9 and 1.0 nm. We employed the Brillouin light scattering spectroscopy to measure the frequency of the spin waves in dependence on the wave vector. Additionally, we characterized the samples by ferromagnetic resonance measurements. We found that the considered samples exhibit perpendicular magnetic anisotropy with low damping, indicating small pumping effects. Furthermore, we found a nonreciprocal dispersion relation pointing at a non-negligible Dzyaloshinskii–Moriya interaction. These results make the Au/CoFeB/Au multilayer a compelling subject for further analysis and as a potential material for future applications within magnonics.https://doi.org/10.1038/s41598-023-49859-8 |
| spellingShingle | S. Janardhanan S. Mielcarek H. Głowiński M. Kowacz P. Kuświk M. Krawczyk A. Trzaskowska Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy Scientific Reports |
| title | Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy |
| title_full | Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy |
| title_fullStr | Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy |
| title_full_unstemmed | Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy |
| title_short | Investigation of spin wave dynamics in Au/CoFeB/Au multilayers with perpendicular magnetic anisotropy |
| title_sort | investigation of spin wave dynamics in au cofeb au multilayers with perpendicular magnetic anisotropy |
| url | https://doi.org/10.1038/s41598-023-49859-8 |
| work_keys_str_mv | AT sjanardhanan investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy AT smielcarek investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy AT hgłowinski investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy AT mkowacz investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy AT pkuswik investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy AT mkrawczyk investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy AT atrzaskowska investigationofspinwavedynamicsinaucofebaumultilayerswithperpendicularmagneticanisotropy |