High-resolution imaging of fast magnetization dynamics in magnetic nanostructures

High-resolution imaging of fast magnetization dynamics in magnetic nanostructures

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...

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Veröffentlicht in:Applied physics letters 2004-04, Vol.84 (17), p.3328-3330
Hauptverfasser: Stoll, Hermann, Puzic, Aleksander, van Waeyenberge, Bartel, Fischer, Peter, Raabe, Joerg, Buess, Matthias, Haug, Thomas, Höllinger, Rainer, Back, Christian, Weiss, Dieter, Denbeaux, Gregory
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container_end_page 3330
container_issue 17
container_start_page 3328
container_title Applied physics letters
container_volume 84
creator Stoll, Hermann
Puzic, Aleksander
van Waeyenberge, Bartel
Fischer, Peter
Raabe, Joerg
Buess, Matthias
Haug, Thomas
Höllinger, Rainer
Back, Christian
Weiss, Dieter
Denbeaux, Gregory
description 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.
doi_str_mv 10.1063/1.1723698
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title High-resolution imaging of fast magnetization dynamics in magnetic nanostructures
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