Publication Date:
2018-12-21
Description:
Author(s): C. L. Chang, S. Mieszczak, M. Zelent, V. Besse, U. Martens, R.R. Tamming, J. Janusonis, P. Graczyk, M. Münzenberg, J.W. Kłos, and R. I. Tobey Creating and controlling spin waves is a central topic in spintronics. Spatially shaped optical fields can be used to create lateral texture in the magnetization profile of a uniformly magnetized sample. When implemented with fast pulses of light, this provides a method to generate user-defined, transient magnetization texture and its accompanying band structure for spin waves. The authors demonstrate this effect using femtosecond laser pulses in the transient-grating geometry, for elastic excitation of a variety of spin waves in a modified magnetic landscape. Comparing experiments to calculations, the authors identify the various elastically activated spin-wave modes. [Phys. Rev. Applied 10, 064051] Published Thu Dec 20, 2018
Electronic ISSN:
2331-7019
Topics:
Physics
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