ESG Experimental Systems Group
|X-PEEM is being used for the study of fore-front scientific problems in magnetism and surface science. The properties of ferromagnetic, antiferromagnetic, and multiferroic thin films are core research areas. For example, X-PEEM was instrumental to obtain a microscopic understanding of exchange bias: the magnetic coupling between a ferromagnet and an antiferromagnet.|
|Synchrotrons are pulsed sources, permitting pump-probe style experiments with about 70 ps time resolution. The laser pump, x-ray probe X-PEEM experiment shows the dynamics of a magnetic vortex in a rectangular Co patch, revealing that the structure of the nanometer-size core governs the dynamics of the system.|
|Higher temporal resolution down to 1 ps and possibly below can be achived using streak camera detection. The not spatially-resolved experiment shows the element-resolved demagnetization dynamics of Fe/Gd in response to an ultrafast laser excitations.|
1/25/2008 - High resolution images of a 25 nm width multilayer at PEEM-3
12/16/2007 - Spring '08 schedule for PEEM-2 and PEEM-3
12/3/2007 - Please remember the January 15 deadline for new user proposals.
9/7/2007 - The Advanced Light Source started a new Postdoctoral Scholarshop Program. Check out this program if you are interested in PEEM or Ultrafast Dynamics.
7/12/2007 - Please check out the tutorials!
4/12/2007 - First user beamtime completed successfully at PEEM-3. Now available: Domain imaging and spectromicroscopy at 60 K using liquid Helium cooling.