Origin of the laser-induced picosecond spin current across magnetization
compensation in ferrimagnetic GdCo
Origin of the laser-induced picosecond spin current across magnetization
compensation in ferrimagnetic GdCo
The optical manipulation of magnetism enabled by rare earth-transition metal ferrimagnets holds the promise of ultrafast, energy efficient spintronic technologies. This work investigates laser-induced picosecond spin currents generated by ferrimagnetic GdCo via terahertz emission spectroscopy. A suppression of the THz emission and spin current is observed at magnetization compensation when …