| Issue |
Europhys. Lett.
Volume 76, Number 1, October 2006
|
|
|---|---|---|
| Page(s) | 109 - 114 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10236-0 | |
| Published online | 30 August 2006 | |
Tunnelling density of states at Coulomb-blockade peaks
School of Physics and Astronomy, University of Birmingham Birmingham B15 2TT, UK
Received:
24
July
2006
Accepted:
9
August
2006
We calculate the tunnelling density of states (TDoS) for a quantum dot in the Coulomb-blockade regime, using a functional integral representation with allowing correctly for the charge quantisation. We show that in addition to the well-known gap in the TDoS in the Coulomb-blockade valleys, there is a suppression of the TDoS at the peaks. We show that such a suppression is necessary in order to get the correct result for the peak of the differential conductance through an almost close quantum dot.
PACS: 73.23.Hk – Coulomb blockade; single-electron tunnelling / 73.23.-b – Electronic transport in mesoscopic systems / 73.63.-b – Electronic transport in nanoscale materials and structures
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.