TY - JOUR
T1 - Resonant Tunneling through a Macroscopic Charge State in a Superconducting Single Electron Transistor
AU - Averin, D. V.
AU - Korotkov, A. N.
AU - Manninen, A. J.
AU - Pekola, J.P.
PY - 1997/6/23
Y1 - 1997/6/23
N2 - We predict theoretically and observe in experiment that the differential conductance of a superconducting single electron transistor exhibits a peak which is a complete analog, in a macroscopic system, of a standard resonant tunneling peak associated with tunneling through a single quantum state. In particular, in a symmetric transistor, the peak height is universal and equal to e2/2πħ. Away from the resonance we clearly observe the cotunneling current which, in contrast to the normal-metal transistor, varies linearly with the bias voltage.
AB - We predict theoretically and observe in experiment that the differential conductance of a superconducting single electron transistor exhibits a peak which is a complete analog, in a macroscopic system, of a standard resonant tunneling peak associated with tunneling through a single quantum state. In particular, in a symmetric transistor, the peak height is universal and equal to e2/2πħ. Away from the resonance we clearly observe the cotunneling current which, in contrast to the normal-metal transistor, varies linearly with the bias voltage.
UR - http://www.scopus.com/inward/record.url?scp=4243659821&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.78.4821
DO - 10.1103/PhysRevLett.78.4821
M3 - Article
AN - SCOPUS:4243659821
SN - 0031-9007
VL - 78
SP - 4821
EP - 4824
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
ER -