A resistively coupled single-electron transistor (R-SET) was fabricated usi
ng a modulation-doped heterostructure and metal Schottky gates, and measure
d at low temperature. Currents of R-SET with tunnel gate resistor were calc
ulated using the orthodox theory. It is shown that the R-SET with tunnel ga
te resistor has quite similar properties to the originally proposed R-SET.
(C) 2000 Academic Press.