Single-electron transfer between two donors. (a) Low-temperature ID-VG characteristics showing a single-donor current peak used as a sensor for detecting charging and discharging of a neighboring donor. (b)-(c) Charging and discharging are sensed as abrupt jumps of the current (producing a hysteresis between up-ramping and down-ramping curves) and (d) as RTS in the time-domain measurements.
Moraru et al. Nanoscale Research Letters 2011 6:479 doi:10.1186/1556-276X-6-479