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  Three-Dimensional Vortex Gyration Dynamics Unraveled by Time-Resolved Soft X-ray Laminography with Freely Selectable Excitation Frequencies

Finizio, S., Donnelly, C., Mayr, S., Hrabec, A., & Raabe, J. (2022). Three-Dimensional Vortex Gyration Dynamics Unraveled by Time-Resolved Soft X-ray Laminography with Freely Selectable Excitation Frequencies. Nano Letters, 22(5), 1971-1977. doi:10.1021/acs.nanolett.1c04662.

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 Creators:
Finizio, Simone1, Author
Donnelly, Claire2, Author              
Mayr, Sina1, Author
Hrabec, Aleš1, Author
Raabe, Jörg1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Spin3D: Three-Dimensional Magnetic Systems, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_3385536              

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 Abstract: The imaging of magneto-dynamical processes has been, so far, mostly a two-dimensional business, also due to the constraints of the available experimental techniques. In this paper, building on the recent developments of soft X-ray magnetic laminography, we present an experimental setup where magneto-dynamical processes can be resolved in all three spatial dimensions and in time at arbitrary frequencies. We employ this setup to investigate two resonant dynamical modes of a CoFeB microstructure, namely, the fundamental vortex gyration mode and a magnetic field-induced domain wall excitation mode. For the former, we observe a large variation of the gyration dynamics across the thickness of the core, coexisting with a breathing mode of the vortex core. For the latter, we observe a uniform displacement of the domain walls across the thickness of the microstructure. The imaging of these two modes establishes the possibility to freely select the excitation frequency for soft X-ray time-resolved laminography, allowing for the investigation of resonant magneto-dynamical processes.

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Language(s): eng - English
 Dates: 2022-02-112022-02-11
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1021/acs.nanolett.1c04662
 Degree: -

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Title: Nano Letters
  Abbreviation : Nano Lett.
Source Genre: Journal
 Creator(s):
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 22 (5) Sequence Number: - Start / End Page: 1971 - 1977 Identifier: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403