Publication Date:
2014-11-18
Description:
Author(s): Philipp Wessels, Johannes Ewald, Marek Wieland, Thomas Nisius, Andreas Vogel, Jens Viefhaus, Guido Meier, Thomas Wilhein, and Markus Drescher The authors have built an X-ray microscope capable of taking snapshots of the domain formation process with a high spatial resolution down to a few ten nanometers. By exposing the sample to intense magnetic field pulses, they destroy the stable domain pattern and probe the rapid time-evolution of the sample magnetization stroboscopically with soft X-ray flashes created by the storage ring PETRA III at DESY in Hamburg. These flashes enable resolving very fast changes in the domain configuration occurring at a few hundred picoseconds and thus a video of the domain destruction and relaxation dynamics can be recorded in slow motion. Visualizing the process of domain formation and reorganization in real time helps developing future magnetic storage devices where digital information is contained in the alignment of nanometer sized domains. [Phys. Rev. B 90, 184417] Published Mon Nov 17, 2014
Keywords:
Magnetism
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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