Stoll, Hermann and Puzic, Aleksander and Waeyenberge, Bartel Van and Fischer, Peter and Raabe, Jörg and Buess, Matthias and Haug, Thomas and Höllinger, Rainer and Back, Christian and Weiss, Dieter and Denbeaux, Gregory (2004) High-resolution imaging of fast magnetization dynamics in magnetic nanostructures. Applied Physics Letters 84 (17), pp. 3328-3330.
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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.
|Institutions:|| Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back|
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||20 Jul 2011 21:04|