| Author(s): |
Travis M. Eiles; Michel H. Devoret; John M. Martinis; |
| Title: |
Coulomb Blockade of Andreev Reflection in the NSN Single Electron Transistor |
| Published: |
February 01, 1994 |
| Abstract: |
We have measured at low temperatures the current through a submicrometer superconducting island connected to nornal metal leads by ultrasmall tunnel junctions. At low bias voltages, the current changes from being e-periodic in the applied gate change to 2e-periodic. We interpret this 2e-periodic current as a manifestation of a sequence of Andreev reflection events which transports two electrons at a time across the island. This behavior is clear evidence that there is a difference in total energy between ground states of differing electron number parity. |
| Citation: |
Physica B-Condensed Matter |
| Volume: |
194 |
| Issue: |
Part 1 |
| Pages: |
pp. 1111 - 1112 |
| Keywords: |
Andreev reflection;Coulomb blockade;general superconductivity;ultra-small tunnel junctions; |
| Research Areas: |
Nanoelectronics and Nanoscale Electronics |
