Incoherent Nuclear Resonant Scattering from a Standing Spin Wave

Gollwitzer, J.; Bocklage, L.; Schlage, K.; Herlitschke, M.; Wille, H. C.; Leupold, O.; Adolff, C. F.; Meier, G.; Röhlsberger, R.

doi:10.1038/s41598-018-29596-z

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Incoherent Nuclear Resonant Scattering from a Standing Spin Wave

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Meier, G.
The Hamburg Centre for Ultrafast Imaging;
Dynamics and Transport in Nanostructures, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

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Citation

Gollwitzer, J., Bocklage, L., Schlage, K., Herlitschke, M., Wille, H. C., Leupold, O., et al. (2018). Incoherent Nuclear Resonant Scattering from a Standing Spin Wave. Scientific Reports, 8: 11261. doi:10.1038/s41598-018-29596-z.

Cite as: https://hdl.handle.net/21.11116/0000-0001-E3D4-F

Abstract

We introduce a method to study the spatial profiles of standing spin waves in ferromagnetic microstructures. The method relies on Nuclear Resonant Scattering of 57Fe 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.