Ultrafast magnetization dynamics studies using an x-ray streakcamera

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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 investigated emagnetization 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 ... continued below

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Bartelt, A.F.; Comin, A.; Feng, J.; Nasiatka, J.; Padmore, H.A.; Scholl, A. et al. July 13, 2005.

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Description

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 investigated emagnetization 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.

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  • SPIE Optics and Photonics 2005, San Diego, CA,July 31 - August 4, 2005

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  • Report No.: LBNL--57899
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 891023
  • Archival Resource Key: ark:/67531/metadc873897

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  • July 13, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 30, 2016, 3:57 p.m.

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Bartelt, A.F.; Comin, A.; Feng, J.; Nasiatka, J.; Padmore, H.A.; Scholl, A. et al. Ultrafast magnetization dynamics studies using an x-ray streakcamera, article, July 13, 2005; (digital.library.unt.edu/ark:/67531/metadc873897/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.