Fig. 3: Readout protocol with spin-orbit coupling.
From: Electrical readout of spins in the absence of spin blockade
a Schematic of pulsing scheme. The state is initialised by randomly unloading a spin from the Boron atom starting from a (2,↓) configuration resulting in either a (↓B, ↓D), or a (↑B, ↓D) The measurement is performed either at RA [triggered by the (↑B, ↓D) state] or at RP [triggered by the (↓B, ↓D) state]. b Energy level diagram showing the load (L) and read points for the two states (RA, RP). The black dashed line denotes the Boron-reservoir transition between the (2,1) and the (1,1) charge states. c Schematic of pulse sequence for spin readout. States are initialised at L, and then pulsed to either RA or RP (blue or red lines). The black dashed lines indicates the control pulse where the state is initialised in the (1,1) region. The time at which data acquisition is started is indicated. d Capacitive signal as a function of measurement time and detuning showing two signal arising from the (↓B, ↓D) and (↑B, ↓D) states. RA and RP are indicated with dashed lines. Measurements carried out at B = 1 T. e, f Line-cuts of d at detuning of RA and RP showing the capacitive signal (normalised to the peak value of each trace) against time. Dashed lines are given as a guide to the eye. The black lines are the signals recorded from the control measurement.
