Fig. 3: Resistance versus magnetic field (R–B) curves.

Three curves were taken at different amplitudes of the ac bias current amplitudes: Ibias = 80 nA—gray line, Ibias = 250 nA— red line, Ibias = 850 nA—black line. The temperature was T = 320 mK.

Three curves were taken at different amplitudes of the ac bias current amplitudes: Ibias = 80 nA—gray line, Ibias = 250 nA— red line, Ibias = 850 nA—black line. The temperature was T = 320 mK.