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Imaging Ultrafast D...
Imaging Ultrafast Demagnetization Dynamics after a Spatially Localized Optical Excitation
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Schmising, C. von Korff (author)
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Pfau, B. (author)
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Schneider, M. (author)
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Guenther, C. M. (author)
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Giovannella, M. (author)
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Perron, J. (author)
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Vodungbo, B. (author)
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Mueller, L. (author)
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Capotondi, F. (author)
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Pedersoli, E. (author)
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Mahne, N. (author)
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Luening, J. (author)
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- Eisebitt, Stefan (author)
- Lund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2014
- 2014
- English.
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In: Physical Review Letters. - 1079-7114. ; 111:21
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
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- Ultrashort, coherent x-ray pulses of a free-electron laser are used to holographically image the magnetization dynamics within a magnetic domain pattern after creation of a localized excitation via an optical standing wave. We observe a spatially confined reduction of the magnetization within a couple of hundred femtoseconds followed by its slower recovery. Additionally, the experimental results show evidence of a spatial evolution of magnetization, which we attribute to ultrafast transport of nonequilibrium spin-polarized electrons for early times and to a fluence-dependent remagnetization rate for later times.
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
- art (subject category)
- ref (subject category)
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- By the author/editor
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Schmising, C. vo ...
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Pfau, B.
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Schneider, M.
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Guenther, C. M.
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Giovannella, M.
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Perron, J.
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show more...
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Vodungbo, B.
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Mueller, L.
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Capotondi, F.
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Pedersoli, E.
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Mahne, N.
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Luening, J.
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Eisebitt, Stefan
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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 ...
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Physical Review ...
- By the university
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Lund University