Thermally assisted all-optical helicity dependent switching of ferrimagnetic amorphous Fe100-xTbx thin films

Hassdenteufel, A.; Hebler, B.; Schubert, C.; Liebig, A.; Teich, M.; Schmidt, J.; Helm, M.; Aeschlimann, M.; Albrecht, M.; Bratschitsch, R.

Thermally assisted all-optical helicity dependent switching of ferrimagnetic amorphous Fe100-xTbx thin films

Hassdenteufel, A.; Hebler, B.; Schubert, C.; Liebig, A.; Teich, M.; Schmidt, J.; Helm, M.; Aeschlimann, M.; Albrecht, M.; Bratschitsch, R.

We observe all-optical switching (AOS) in ferrimagnetic Fe100-xTbx alloy films below, above, and in samples without a magnetic compensation point. AOS is linked to a low remanent magnetization MR and associated with laser heating up to the Curie temperature. Above MR = 220 emu/cc AOS is replaced by pure thermal demagnetization.

Keywords: All-optical switching; Alloy film; Helicities; Magnetic compensation; Remanent magnetization; Thermal demagnetization

Contribution to proceedings
International Conference on Ultrafast Magnetism, UMC 2013, 28.10.-01.11.2013, Strasbourg, France
Springer Proceedings in Physics: Springer, 978-331907742, 238-240
DOI: 10.1007/978-3-319-07743-7_74

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