Fig. 2: Switching dynamics of ferrimagnetic dots.
From: Real-time Hall-effect detection of current-induced magnetization dynamics in ferrimagnets
a Reference (in black) and switching traces of Pt/GdFeCo dots for 20-ns-long voltage pulses of increasing amplitude, showing up-down (blue lines) and down-up (red lines) reversals. The curves are averages of 1000 events. The in-plane magnetic field is 125 mT. b, c Normalized down-up and up-down switching traces at different pulse amplitudes corresponding to the traces in a. The current density in the Pt layer corresponding to a pulse amplitude of 1.4 V is ≈5.2 × 1011 A m−2. d, e Normalized down-up and up-down switching traces at different in-plane fields, for pulses with 1.6 V amplitude. In all the measurements the current was positive, whereas the field was positive (negative) in c, e (b, d).
