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Extreme Domain Wall...
Extreme Domain Wall Speeds under Ultrafast Optical Excitation
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Jangid, Rahul (author)
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- Zhou Hagström, Nanna, 1993- (author)
- Stockholms universitet,Fysikum,University of California Davis, USA
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Madhavi, Meera (author)
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Rockwell, Kyle (author)
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Shaw, Justin M. (author)
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Brock, Jeffrey A. (author)
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Pancaldi, Matteo (author)
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De Angelis, Dario (author)
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Capotondi, Flavio (author)
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Pedersoli, Emanuele (author)
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Nembach, Hans T. (author)
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Keller, Mark W. (author)
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- Bonetti, Stefano, 1982- (author)
- Stockholms universitet,Fysikum,Ca’ Foscari University of Venice, Italy
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Fullerton, Eric E. (author)
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Iacocca, Ezio (author)
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Kukreja, Roopali (author)
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Silva, Thomas J. (author)
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 131:25
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Time-resolved ultrafast EUV magnetic scattering was used to test a recent prediction of > 10 km/s domain wall speeds by optically exciting a magnetic sample with a nanoscale labyrinthine domain pattern. Ultrafast distortion of the diffraction pattern was observed at markedly different timescales compared to the magnetization quenching. The diffraction pattern distortion shows a threshold dependence with laser fluence, not seen for magnetization quenching, consistent with a picture of domain wall motion with pinning sites. Supported by simulations, we show that a speed of approximate to 66 km/s for highly curved domain walls can explain the experimental data. While our data agree with the prediction of extreme, nonequilibrium wall speeds locally, it differs from the details of the theory, suggesting that additional mechanisms are required to fully understand these effects.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Jangid, Rahul
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Zhou Hagström, N ...
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Madhavi, Meera
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Rockwell, Kyle
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Shaw, Justin M.
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Brock, Jeffrey A ...
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show more...
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Pancaldi, Matteo
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De Angelis, Dari ...
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Capotondi, Flavi ...
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Pedersoli, Emanu ...
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Nembach, Hans T.
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Keller, Mark W.
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Bonetti, Stefano ...
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Fullerton, Eric ...
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Iacocca, Ezio
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Kukreja, Roopali
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Silva, Thomas J.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
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Physical Review ...
- By the university
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Stockholm University