Leakage and counting errors in a seven-junction electron pump
- 15 September 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 60 (11), 8199-8212
- https://doi.org/10.1103/physrevb.60.8199
Abstract
Leakage and counting errors are explored experimentally in a well-characterized seven-junction electron pump and compared with predictions of the orthodox theory, including cotunneling. Theory and experiment are in good agreement at intermediate temperatures, where errors are dominated by thermally activated, single-junction processes. At low temperatures, however, the observed errors far exceed predictions, indicating that the orthodox theory omits an important error process.Keywords
This publication has 21 references indexed in Scilit:
- Rare Errors in a Well-Characterized Electron Pump: Comparison of Experiment and TheoryPhysical Review Letters, 1998
- A seven-junction electron pump: design, fabrication, and operationIEEE Transactions on Instrumentation and Measurement, 1997
- Accuracy of electron counting using a 7-junction electron pumpApplied Physics Letters, 1996
- Effect of polarization screening length on electron-pump cotunneling errorsPhysical Review B, 1995
- Metrological accuracy of the electron pumpPhysical Review Letters, 1994
- Testing for metrological accuracy of the electron pumpPhysica B: Condensed Matter, 1994
- Ultimate accuracy of single-electron dc current standardsJournal of Applied Physics, 1993
- Single-Electron Pump Based on Charging EffectsEurophysics Letters, 1992
- Controlled transfer of single charge carriersIEEE Transactions on Magnetics, 1991
- Single electron pump fabricated with ultrasmall normal tunnel junctionsPhysica B: Condensed Matter, 1991