Fig. 3: Spin-transfer torque switching.
From: Local bifurcation with spin-transfer torque in superparamagnetic tunnel junctions
a Circuit configuration to measure spin-transfer-torque (STT) switching probability of low thermal stability factor MTJs. b Schematics of voltage waveform applied to MTJs. c Transmitted voltage monitored at oscilloscope during read sequence with a duration of 85 ns. d Switching probability as a function of pulse voltage amplitude V with different write pulse duration tpulse. e Switching voltage VC as a function of tpulse−1. Lines are linear fits, whose intercept yields intrinsic critical voltages VC0,P(AP).
