Nanosecond X-Ray Photon Correlation Spectroscopy on Magnetic Skyrmions

Authors

M. H. Seaberg, SLAC National Accelerator Laboratory
B. Holladay, University of California, San Diego
J. C.T. Lee, University of Oregon
M. Sikorski, SLAC National Accelerator Laboratory
A. H. Reid, SLAC National Accelerator Laboratory
S. A. Montoya, Center for Memory and Recording Research
G. L. Dakovski, SLAC National Accelerator Laboratory
J. D. Koralek, SLAC National Accelerator Laboratory
G. Coslovich, SLAC National Accelerator Laboratory
S. Moeller, SLAC National Accelerator Laboratory
W. F. Schlotter, SLAC National Accelerator Laboratory
R. Streubel, Lawrence Berkeley National LaboratoryFollow
S. D. Kevan, University of Oregon
P. Fischer, Lawrence Berkeley National LaboratoryFollow
E. E. Fullerton, Center for Memory and Recording Research
J. L. Turner, SLAC National Accelerator Laboratory
F. J. Decker, SLAC National Accelerator Laboratory
S. K. Sinha, University of California, San Diego
S. Roy, Lawrence Berkeley National LaboratoryFollow
J. J. Turner, SLAC National Accelerator LaboratoryFollow

Date of this Version

8-9-2017

Document Type

Article

Citation

PHYSICAL REVIEW LETTERS 119, 067403 (2017)

DOI: 10.1103/PhysRevLett.119.067403

Comments

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license

Abstract

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.