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

Document Type

Article

Date of this Version

8-9-2017

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.