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Proceedings Paper

Ultrafast magnetization dynamics studies using an x-ray streak camera
Author(s): A. F. Bartelt; A. Comin; J. Feng; J. Nasiatka; H. A. Padmore; A. Scholl; A. Young
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Paper Abstract

The spin dynamics of ferromagnetic thin films following an excitation by ultrashort 100-fs near-infrared laser pulses has recently received much attention. Here, a new approach is described using x-ray magnetic circular dichroism to investigate demagnetization and magnetization switching processes. In contrast to magneto-optical measurements, x-ray dichroism has the advantage of determining separately the spin and orbital components of the magnetic moment. The relatively low time resolution of the synchrotron x-ray probe pulses (80 ps FWHM) is overcome by employing an ultrafast x-ray streak camera with a time resolution of < 1 ps. A description of the experimental setup including the x-ray/IR laser pulse synchronization and the streak camera is given.

Paper Details

Date Published: 21 September 2005
PDF: 6 pages
Proc. SPIE 5920, Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications, 592019 (21 September 2005); doi: 10.1117/12.640528
Show Author Affiliations
A. F. Bartelt, Lawrence Berkeley National Lab. (United States)
A. Comin, Lawrence Berkeley National Lab. (United States)
J. Feng, Lawrence Berkeley National Lab. (United States)
J. Nasiatka, Lawrence Berkeley National Lab. (United States)
H. A. Padmore, Lawrence Berkeley National Lab. (United States)
A. Scholl, Lawrence Berkeley National Lab. (United States)
A. Young, Lawrence Berkeley National Lab. (United States)


Published in SPIE Proceedings Vol. 5920:
Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications
Zenghu Chang; Stuart Kleinfelder; Dennis L. Paisley; Jean-Claude Kieffer; Jerome B. Hastings, Editor(s)

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