Nanosecond X-Ray Photon Correlation Spectroscopy on Magnetic Skyrmions

We report an x-ray photon correlation spectroscopy method that exploits the recent development of the two-pulse mode at the Linac Coherent Light Source. By using coherent resonant x-ray magnetic scattering, we studied spontaneous fluctuations on nanosecond time scales in thin films of multilayered F...

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Veröffentlicht in:	Physical review letters 2017-08, Vol.119 (6), p.067403-067403, Article 067403
Hauptverfasser:	Seaberg, M H, Holladay, B, Lee, J C T, Sikorski, M, Reid, A H, Montoya, S A, Dakovski, G L, Koralek, J D, Coslovich, G, Moeller, S, Schlotter, W F, Streubel, R, Kevan, S D, Fischer, P, Fullerton, E E, Turner, J L, Decker, F-J, Sinha, S K, Roy, S, Turner, J J
Format:	Artikel
Sprache:	eng
Schlagworte:	Ferromagnets INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY Magnetic multilayers Multilayer thin films PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Zusammenfassung:	We report an x-ray photon correlation spectroscopy method that exploits the recent development of the two-pulse mode at the Linac Coherent Light Source. By using coherent resonant x-ray magnetic scattering, we studied spontaneous fluctuations on nanosecond time scales in thin films of multilayered Fe/Gd that exhibit ordered stripe and Skyrmion lattice phases. The correlation time of the fluctuations was found to differ between the Skyrmion phase and near the stripe-Skyrmion boundary. This technique will enable a significant new area of research on the study of equilibrium fluctuations in condensed matter.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.119.067403