Incoherent Nuclear Resonant Scattering from a Standing Spin Wave

We introduce a method to study the spatial profiles of standing spin waves in ferromagnetic microstructures. The method relies on Nuclear Resonant Scattering of 57 Fe using a microfocused beam of synchrotron radiation, the transverse coherence length of which is smaller than the length scale of late...

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Bibliographic Details
Published in:Scientific reports 2018-07, Vol.8 (1), p.11261-8, Article 11261
Main Authors: Gollwitzer, Jakob, Bocklage, Lars, Schlage, Kai, Herlitschke, Marcus, Wille, Hans Christian, Leupold, Olaf, Adolff, Christian F., Meier, Guido, Röhlsberger, Ralf
Format: Article
Language:English
Subjects:
639/766/119/1001
639/766/119/997
Experimental methods
Humanities and Social Sciences
Methods
multidisciplinary
Radiation
Science
Science (multidisciplinary)
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Summary:We introduce a method to study the spatial profiles of standing spin waves in ferromagnetic microstructures. The method relies on Nuclear Resonant Scattering of 57 Fe using a microfocused beam of synchrotron radiation, the transverse coherence length of which is smaller than the length scale of lateral variations in the magnetization dynamics. Using this experimental method, the nuclear resonant scattering signal due to a confined spin wave is determined on the basis of an incoherent superposition model. From the fits of the Nuclear Resonant Scattering time spectra, the precessional amplitude profile across the stripe predicted by an analytical model is reconstructed. Our results pave the way for studying non-homogeneous dynamic spin configurations in microstructured magnetic systems using nuclear resonant scattering of synchrotron light.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-018-29596-z