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

Abstract

X-ray magnetic circular dichroism spectroscopy using an X-ray free electron laser is demonstrated with spectra over the Fe L{sub 3,2}-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.

Authors:
 [1]; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]; ;  [1];
  1. SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025 (United States)
Publication Date:
OSTI Identifier:
22597072
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ABSORPTION SPECTROSCOPY; ACCURACY; BRIGHTNESS; ELECTRONS; FREE ELECTRON LASERS; GADOLINIUM; IRON; MAGNETIC CIRCULAR DICHROISM; MAGNETIZATION; SENSITIVITY; SPECTRA; THIN FILMS; X RADIATION

Citation Formats

Higley, Daniel J., E-mail: dhigley@stanford.edu, Yuan, Edwin, Department of Applied Physics, Stanford University, Stanford, California 94305, Hirsch, Konstantin, Dakovski, Georgi L., Jal, Emmanuelle, Lutman, Alberto A., Coslovich, Giacomo, Hart, Philip, Hoffmann, Matthias C., Mitra, Ankush, Moeller, Stefan, Ohldag, Hendrik, Seaberg, Matthew, Stöhr, Joachim, Nuhn, Heinz-Dieter, Reid, Alex H., Dürr, Hermann A., Schlotter, William F., Liu, Tianmin, MacArthur, James P., Department of Physics, Stanford University, Stanford, California 94305, and others, and. Femtosecond X-ray magnetic circular dichroism absorption spectroscopy at an X-ray free electron laser. United States: N. p., 2016. Web. doi:10.1063/1.4944410.
Higley, Daniel J., E-mail: dhigley@stanford.edu, Yuan, Edwin, Department of Applied Physics, Stanford University, Stanford, California 94305, Hirsch, Konstantin, Dakovski, Georgi L., Jal, Emmanuelle, Lutman, Alberto A., Coslovich, Giacomo, Hart, Philip, Hoffmann, Matthias C., Mitra, Ankush, Moeller, Stefan, Ohldag, Hendrik, Seaberg, Matthew, Stöhr, Joachim, Nuhn, Heinz-Dieter, Reid, Alex H., Dürr, Hermann A., Schlotter, William F., Liu, Tianmin, MacArthur, James P., Department of Physics, Stanford University, Stanford, California 94305, & others, and. Femtosecond X-ray magnetic circular dichroism absorption spectroscopy at an X-ray free electron laser. United States. https://doi.org/10.1063/1.4944410
Higley, Daniel J., E-mail: dhigley@stanford.edu, Yuan, Edwin, Department of Applied Physics, Stanford University, Stanford, California 94305, Hirsch, Konstantin, Dakovski, Georgi L., Jal, Emmanuelle, Lutman, Alberto A., Coslovich, Giacomo, Hart, Philip, Hoffmann, Matthias C., Mitra, Ankush, Moeller, Stefan, Ohldag, Hendrik, Seaberg, Matthew, Stöhr, Joachim, Nuhn, Heinz-Dieter, Reid, Alex H., Dürr, Hermann A., Schlotter, William F., Liu, Tianmin, MacArthur, James P., Department of Physics, Stanford University, Stanford, California 94305, and others, and. 2016. "Femtosecond X-ray magnetic circular dichroism absorption spectroscopy at an X-ray free electron laser". United States. https://doi.org/10.1063/1.4944410.
@article{osti_22597072,
title = {Femtosecond X-ray magnetic circular dichroism absorption spectroscopy at an X-ray free electron laser},
author = {Higley, Daniel J., E-mail: dhigley@stanford.edu and Yuan, Edwin and Department of Applied Physics, Stanford University, Stanford, California 94305 and Hirsch, Konstantin and Dakovski, Georgi L. and Jal, Emmanuelle and Lutman, Alberto A. and Coslovich, Giacomo and Hart, Philip and Hoffmann, Matthias C. and Mitra, Ankush and Moeller, Stefan and Ohldag, Hendrik and Seaberg, Matthew and Stöhr, Joachim and Nuhn, Heinz-Dieter and Reid, Alex H. and Dürr, Hermann A. and Schlotter, William F. and Liu, Tianmin and MacArthur, James P. and Department of Physics, Stanford University, Stanford, California 94305 and others, and},
abstractNote = {X-ray magnetic circular dichroism spectroscopy using an X-ray free electron laser is demonstrated with spectra over the Fe L{sub 3,2}-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.},
doi = {10.1063/1.4944410},
url = {https://www.osti.gov/biblio/22597072}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 3,
volume = 87,
place = {United States},
year = {Tue Mar 15 00:00:00 EDT 2016},
month = {Tue Mar 15 00:00:00 EDT 2016}
}