Transport through a 2DEG channel with superconducting boundaries
Nitta, J vanWees, BJ Heida, JP Klapwijk, TM Dimoulas, A vandeGraaf, W Borghs, Gustaaf #
Elsevier science bv
Surface science vol:362 issue:1-3 pages:320-323
We have investigated transport through a channel with superconducting boundaries where-electrons are confined by Andreev reflection. Superconducting phase-sensitive transport is discussed using qualitative arguments. The transfer resistance R(t) through the channel as well as the resistance R(i) between the injector and the channel have been measured as a function of the phase difference phi Between the superconducting boundaries. It is not yet clear that the observed oscillation in resistance can be attributed to quasi-particle phase-sensitive transport. The oscillation amplitude in R(t) due to the transmitted current modulation is less than 0.1% in this experiment.