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Femtosecond single-shot imaging of nanoscale ferromagnetic order in co/pd multilayers using resonant x-ray holography
T. Wang, D. Zhu, B. Wu, C. Graves, S. Schaffert, T. Rander, L. Müller, B. Vodungbo, C. Baumier, D.P. BernsteinShow More
Published in American Physical Society
2012
Volume: 108
   
Issue: 26
Abstract
We present the first single-shot images of ferromagnetic, nanoscale spin order taken with femtosecond x-ray pulses. X-ray-induced electron and spin dynamics can be outrun with pulses shorter than 80 fs in the investigated fluence regime, and no permanent aftereffects in the samples are observed below a fluence of 25mJ/cm2. Employing resonant spatially muliplexed x-ray holography results in a low imaging threshold of 5mJ/cm2. Our results open new ways to combine ultrafast laser spectroscopy with sequential snapshot imaging on a single sample, generating a movie of excited state dynamics. © 2012 American Physical Society.
About the journal
JournalPhysical Review Letters
PublisherAmerican Physical Society
ISSN00319007