Sebastian Baierl, Matthias Hohenleutner, Tobias Kampfrath, Anatoly Zvezdin, Alexey Kimel, Rupert Huber, and Rostislav Mikhaylovskiy:
OSA Technical Digest (online) (Optical Society of America, 2016), paper FTu1L.1, pp.2;
Few cycle THz transients pump electronic transitions coupled to the spin system in thulium orthoferrite to trigger coherent magnons. Exploiting this novel driving mechanism we realize the first nonlinear interaction between THz pulses and spins.
The original publication is available by link DOI: 10.1364/CLEO_QELS.2016.FTu1L.1