Thermally assisted all-optical helicity dependent magnetic switching in amorphous Fe(100-x)Tb(x) alloy films.

Hassdenteufel, Alexander; Hebler, Birgit; Schubert, Christian; Liebig, Andreas; Teich, Martin; Helm, Manfred; Aeschlimann, Martin; Albrecht, Manfred et al. · Adv Mater · 2013

basic_science · Level V

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Record sourced from PubMed, PMID 23616209.
Also identified by DOI 10.1002/adma.201300176.
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Abstract

All-optical switching (AOS) in ferrimagnetic Fe(100-x)Tb(x) alloys is presented. AOS is witnessed below, above, and in samples without a magnetic compensation point. It is found that AOS is associated with laser heating up to the Curie temperature and intimately linked to a low remanent sample magnetization. Above a threshold magnetization of 220 emu/cc helicity dependent AOS is replaced by pure thermal demagnetization.

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