Journal
APPLIED PHYSICS LETTERS
Volume 84, Issue 17, Pages 3328-3330Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1723698
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By combining magnetic transmission x-ray microscopy with a stroboscopic pump and probe technique using synchrotron radiation we are able to image the magnetization dynamics in micron sized magnetic particles on a sub-100 ps time scale with a lateral spatial resolution down to 21 nm. We report first observations in squared elements indicating locally varying precessional frequencies which are in agreement with micromagnetic simulations. The experiment opens a route towards a high spatiotemporal resolution of spin patterns which is needed to understand the microscopic origin of magnetization reversal of micron sized and nano-sized magnetic particles. (C) 2004 American Institute of Physics.
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