Femtosecond X-ray magnetic circular dichroism absorption spectroscopy at an X-ray free electron laser

Authors
  • D.J. Higley
  • K. Hirsch
  • G.L. Dakovski
  • E. Jal
  • E. Yuan
  • T. Liu
  • A.A. Lutman
  • J.P. MacArthur
  • E. Arenholz
  • Z. Chen
  • G. Coslovich
  • P. Denes
  • P.W. Granitzka
  • P. Hart
  • M.C. Hoffmann
  • J. Joseph
  • L. Le Guyader
  • A. Mitra
  • S. Moeller
  • H. Ohldag
  • M. Seaberg
  • P. Shafer
  • J. Stöhr
  • A. Tsukamoto
  • H.-D. Nuhn
  • A.H. Reid
  • H.A. Dürr
  • W.F. Schlotter
Publication date 03-2016
Journal Review of Scientific Instruments
Article number 033110
Volume | Issue number 87 | 3
Number of pages 5
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for High Energy Physics (IHEF)
  • Faculty of Science (FNWI) - Institute of Physics (IoP)
Abstract

X-ray magnetic circular dichroism spectroscopy using an X-ray free electron laser is demonstrated with spectra over the Fe L3,2-edges. The high brightness of the X-ray free electron laser combined with high accuracy detection of incident and transmitted X-rays enables ultrafast X-ray magnetic circular dichroism studies of unprecedented sensitivity. This new capability is applied to a study of all-optical magnetic switching dynamics of Fe and Gd magnetic sublattices in a GdFeCo thin film above its magnetization compensation temperature.
Document type Article
Language English
Published at https://doi.org/10.1063/1.4944410
Other links https://www.scopus.com/pages/publications/84977269091
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