Ultrafast all-optical toggle writing of magnetic bits without relying on heat
T. Zalewski,
A. Maziewski,
A. V. Kimel
et al.
Abstract:Ultrafast excitation of matter can violate Curie’s principle that the symmetry of the cause must be found in the symmetry of the effect. For instance, heating alone cannot result in a deterministic reversal of magnetization. However, if the heating is ultrafast, it facilitates toggle switching of magnetization between stable bit-states without any magnetic field. Here we show that the regime of ultrafast toggle switching can be also realized via a mechanism without relying on heat. Ultrafast laser excitation o… Show more
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