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All-optical magnetic switching is demonstrated in a Tb-Fe thin film with a conventional laser oscillator instead of a complex and expensive amplifier system. Overheating is prevented by a SiO2/Si substrate as an efficient heat sink.
All‐optical switching (AOS) in ferrimagnetic Fe100‐xTbx 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...
Switching the magnetization without any external applied magnetic field by using ultrashort circularly polarized laser pulses is a fascinating and challenging topic of modern magnetism. Up to now there is still no consensus about the microscopic mechanism of this so called all‐optical switching (AOS) and several different models are suggested. In particular the importance of heat and helicity driven...
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