Abstract
FePt is among the most widely used materials for data-storage technology, and recent experiments surprisingly suggest the possibility of all-optical control of its magnetization--without any external magnetic field. Sorting out the electronic temperature in the presence of heating from a laser burst, and any helicity dependence of the switching, is essential. Using a high-temperature micromagnetic model, the authors study ultrafast magnetization reversal in thin films of FePt exposed to laser pulses with linear and circular polarizations, to begin to clarify the critical details.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have