Collective magnetization dynamics in nanoarrays of thin FePd disks
| Autor: | Vassilios Kapaklis, Ankit Kumar, Agne Ciuciulkaite, Marc A. Verschuuren, Björgvin Hjörvarsson, Rimantas Brucas, Peter Svedlindh, Erik Östman |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Mesoscopic physics
Magnetization dynamics Materials science Condensed Matter - Mesoscale and Nanoscale Physics Field (physics) Condensed matter physics FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Ferromagnetic resonance Spectral line Magnetic field Spin wave Excited state Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review B |
| ISSN: | 2469-9950 |
| DOI: | 10.1103/PhysRevB.99.184415 |
| Popis: | We report on the magnetization dynamics of a square array of mesoscopic discs, fabricated from an iron palladium alloy film. The dynamics properties were explored using ferromagnetic resonance measurements and micromagnetic simulations. The obtained spectra exhibit features resulting from the interactions between the discs, with a clear dependence on both temperature and the direction of the externally applied field. We demonstrate a qualitative agreement between the measured and calculated spectra. Furthermore, we calculated the mode profiles of the standing spin waves excited during a time-dependent magnetic field excitations. The resulting maps confirm that the features appearing in the ferromagnetic resonance absorption spectra originate from the temperature and directional dependent inter-disc interactions. 9 pages, 10 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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