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Shot noise in tunneling through a single quantum dot

Nauen, André LU ; Hohls, F; Maire, N; Pierz, K and Haug, RJ (2004) In Physical Review B (Condensed Matter and Materials Physics) 70(3).
Abstract
We investigate the noise properties of a zero-dimensional InAs quantum dot (QD) embedded in a GaAs-AlAs-GaAs tunneling structure. We observe an approximately linear dependence of the Fano factor and the current as a function of bias voltage. Both effects can be linked to the scanning of the three-dimensional emitter density of states by the QD. At the current step the shape of the Fano factor is mainly determined by the Fermi function of the emitter electrons. The observed voltage and temperature dependence is compared to the results of a master equation approach.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
70
issue
3
publisher
American Physical Society
external identifiers
  • wos:000222996700016
  • scopus:37649029400
ISSN
1098-0121
DOI
10.1103/PhysRevB.70.033305
language
English
LU publication?
yes
id
abc1a563-9095-4fcc-8e70-6b6c91a17090 (old id 905472)
date added to LUP
2008-01-15 15:23:49
date last changed
2017-08-27 05:39:02
@article{abc1a563-9095-4fcc-8e70-6b6c91a17090,
  abstract     = {We investigate the noise properties of a zero-dimensional InAs quantum dot (QD) embedded in a GaAs-AlAs-GaAs tunneling structure. We observe an approximately linear dependence of the Fano factor and the current as a function of bias voltage. Both effects can be linked to the scanning of the three-dimensional emitter density of states by the QD. At the current step the shape of the Fano factor is mainly determined by the Fermi function of the emitter electrons. The observed voltage and temperature dependence is compared to the results of a master equation approach.},
  articleno    = {033305},
  author       = {Nauen, André and Hohls, F and Maire, N and Pierz, K and Haug, RJ},
  issn         = {1098-0121},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Shot noise in tunneling through a single quantum dot},
  url          = {http://dx.doi.org/10.1103/PhysRevB.70.033305},
  volume       = {70},
  year         = {2004},
}