Low power continuous-wave all-optical magnetic switching in ferromagnetic nanoarrays
Low power continuous-wave all-optical magnetic switching in ferromagnetic nanoarrays
All-optical magnetic switching represents a next-generation class of local magnetisation control, with wide-ranging technological implications. Existing all-optical switching schemes are unsuitable for device integration, typically requiring femtosecond-pulsed lasers and complex magnetic materials. Here, we demonstrate deterministic, all-optical magnetic switching using a low-power, linearly-polarised continuous-wave laser in nanoparticles with sub-diffraction limit …