Ultrafast magnetization dynamics studies using an x-ray streak camera

A. F. Bartelt; A. Comin; J. Feng; J. Nasiatka; H. A. Padmore; A. Scholl; A. Young

doi:10.1117/12.640528

21 September 2005 Ultrafast magnetization dynamics studies using an x-ray streak camera

A. F. Bartelt, A. Comin, J. Feng, J. Nasiatka, H. A. Padmore, A. Scholl, A. Young

Proceedings Volume 5920, Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications; 592019 (2005) https://doi.org/10.1117/12.640528
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

A. F. Bartelt, A. Comin, J. Feng, J. Nasiatka, H. A. Padmore, A. Scholl, and A. Young "Ultrafast magnetization dynamics studies using an x-ray streak camera", Proc. SPIE 5920, Ultrafast X-Ray Detectors, High-Speed Imaging, and Applications, 592019 (21 September 2005); https://doi.org/10.1117/12.640528

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