Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance
Magnetic multilayers offer diverse opportunities for the development of ultrafast functional devices through advanced interface and layer engineering. Nevertheless, a method for determining their dynamic properties as a function of depth throughout such stacks have remained elusive. By probing the f...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2020
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| _version_ | 1826285150705549312 |
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| author | Burn, DM Zhang, SL Yu, GQ Guang, Y Chen, HJ Qiu, XP van der Laan, G Hesjedal, T |
| author_facet | Burn, DM Zhang, SL Yu, GQ Guang, Y Chen, HJ Qiu, XP van der Laan, G Hesjedal, T |
| author_sort | Burn, DM |
| collection | OXFORD |
| description | Magnetic multilayers offer diverse opportunities for the development of ultrafast functional devices through advanced interface and layer engineering. Nevertheless, a method for determining their dynamic properties as a function of depth throughout such stacks have remained elusive. By probing the ferromagnetic resonance (FMR) modes with element-selective soft x-ray resonant reflectivity, we gain access to the magnetization dynamics as a function of depth. Most notably, using reflectometry ferromagnetic resonance (RFMR), we find a phase lag between the coupled ferromagnetic layers in [CoFeB/MgO/Ta]4 multilayers, which is invisible to other techniques. RFMR enables the time- and layer-resolved probing of the complex magnetization dynamics of a wide range of functional magnetic heterostructures with absorption edges in the soft x-ray wavelength regime. |
| first_indexed | 2024-03-07T01:24:32Z |
| format | Journal article |
| id | oxford-uuid:91846ee4-48e8-4ade-971c-b651d28535cc |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:24:32Z |
| publishDate | 2020 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:91846ee4-48e8-4ade-971c-b651d28535cc2022-03-26T23:19:16ZDepth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonanceJournal articlehttp://purl.org/coar/resource_type/c_545buuid:91846ee4-48e8-4ade-971c-b651d28535ccEnglishSymplectic ElementsAmerican Physical Society2020Burn, DMZhang, SLYu, GQGuang, YChen, HJQiu, XPvan der Laan, GHesjedal, TMagnetic multilayers offer diverse opportunities for the development of ultrafast functional devices through advanced interface and layer engineering. Nevertheless, a method for determining their dynamic properties as a function of depth throughout such stacks have remained elusive. By probing the ferromagnetic resonance (FMR) modes with element-selective soft x-ray resonant reflectivity, we gain access to the magnetization dynamics as a function of depth. Most notably, using reflectometry ferromagnetic resonance (RFMR), we find a phase lag between the coupled ferromagnetic layers in [CoFeB/MgO/Ta]4 multilayers, which is invisible to other techniques. RFMR enables the time- and layer-resolved probing of the complex magnetization dynamics of a wide range of functional magnetic heterostructures with absorption edges in the soft x-ray wavelength regime. |
| spellingShingle | Burn, DM Zhang, SL Yu, GQ Guang, Y Chen, HJ Qiu, XP van der Laan, G Hesjedal, T Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance |
| title | Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance |
| title_full | Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance |
| title_fullStr | Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance |
| title_full_unstemmed | Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance |
| title_short | Depth-resolved magnetization dynamics revealed by x-ray reflectometry ferromagnetic resonance |
| title_sort | depth resolved magnetization dynamics revealed by x ray reflectometry ferromagnetic resonance |
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