Emission of coherent THz magnons in an antiferromagnetic insulator triggered by ultrafast spin-phonon interactions

2022

Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics, however, remains a key challenge that is envisioned to be accomplished by spin-orbit torques or direct optical excitations. Here, we demonstrate the combined generation of broadband THz (incoherent) magnons and narrowband (coherent) magnons at 1 THz in low damping thin films of NiO/Pt. We evidence, experimentally and through modelling, two excitation processes of magnetization dynamics in NiO, an off-resonant instantaneous optical spin torque and a strain-wave-induced THz torque induced by ultrafast Pt excitatio…

Abstracts of papers and posters safe handling of medicines

1993

Abstracts of papers and posters advanced activities in pharmaceutical care 24th European Symposium on Clinical Pharmacy

1995