Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects
Ferromagnetic resonance in thin films and heterostructures is studied by micromagnetic simulation. Using a Fourier transform, we obtain the power spectrum of modes of precession and demonstrate that they agree with experimental results. Additional resonance modes associated with demagnetization effe...
| 主要な著者: | , , , , , |
|---|---|
| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
American Institute of Physics Inc.
2014
|
| _version_ | 1826295461800050688 |
|---|---|
| author | Baker, A Davies, C Figueroa, A Shelford, L van der Laan, G Hesjedal, T |
| author_facet | Baker, A Davies, C Figueroa, A Shelford, L van der Laan, G Hesjedal, T |
| author_sort | Baker, A |
| collection | OXFORD |
| description | Ferromagnetic resonance in thin films and heterostructures is studied by micromagnetic simulation. Using a Fourier transform, we obtain the power spectrum of modes of precession and demonstrate that they agree with experimental results. Additional resonance modes associated with demagnetization effects are observed and studied as a function of the sample dimensions. Sufficiently confined geometries lead to a reorientation of the resonance mode, and a dramatic change in its frequency. Finally, the simulations are extended to exchange-coupled bilayers where energy is transferred between magnetic materials. © 2014 AIP Publishing LLC. |
| first_indexed | 2024-03-07T04:01:24Z |
| format | Journal article |
| id | oxford-uuid:c4b24644-5c5c-489d-a3e6-1c797c5992de |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:01:24Z |
| publishDate | 2014 |
| publisher | American Institute of Physics Inc. |
| record_format | dspace |
| spelling | oxford-uuid:c4b24644-5c5c-489d-a3e6-1c797c5992de2022-03-27T06:25:26ZModelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effectsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c4b24644-5c5c-489d-a3e6-1c797c5992deEnglishSymplectic Elements at OxfordAmerican Institute of Physics Inc.2014Baker, ADavies, CFigueroa, AShelford, Lvan der Laan, GHesjedal, TFerromagnetic resonance in thin films and heterostructures is studied by micromagnetic simulation. Using a Fourier transform, we obtain the power spectrum of modes of precession and demonstrate that they agree with experimental results. Additional resonance modes associated with demagnetization effects are observed and studied as a function of the sample dimensions. Sufficiently confined geometries lead to a reorientation of the resonance mode, and a dramatic change in its frequency. Finally, the simulations are extended to exchange-coupled bilayers where energy is transferred between magnetic materials. © 2014 AIP Publishing LLC. |
| spellingShingle | Baker, A Davies, C Figueroa, A Shelford, L van der Laan, G Hesjedal, T Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects |
| title | Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects |
| title_full | Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects |
| title_fullStr | Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects |
| title_full_unstemmed | Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects |
| title_short | Modelling ferromagnetic resonance in magnetic multilayers: Exchange coupling and demagnetisation-driven effects |
| title_sort | modelling ferromagnetic resonance in magnetic multilayers exchange coupling and demagnetisation driven effects |
| work_keys_str_mv | AT bakera modellingferromagneticresonanceinmagneticmultilayersexchangecouplinganddemagnetisationdriveneffects AT daviesc modellingferromagneticresonanceinmagneticmultilayersexchangecouplinganddemagnetisationdriveneffects AT figueroaa modellingferromagneticresonanceinmagneticmultilayersexchangecouplinganddemagnetisationdriveneffects AT shelfordl modellingferromagneticresonanceinmagneticmultilayersexchangecouplinganddemagnetisationdriveneffects AT vanderlaang modellingferromagneticresonanceinmagneticmultilayersexchangecouplinganddemagnetisationdriveneffects AT hesjedalt modellingferromagneticresonanceinmagneticmultilayersexchangecouplinganddemagnetisationdriveneffects |