Shot noise in tunneling through a single quantum dot
(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:
https://lup.lub.lu.se/record/905472
- author
- Nauen, André LU ; Hohls, F ; Maire, N ; Pierz, K and Haug, RJ
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 70
- issue
- 3
- article number
- 033305
- 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
- 2016-04-01 17:07:17
- date last changed
- 2022-01-29 00:28:28
@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.}}, 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}}, doi = {{10.1103/PhysRevB.70.033305}}, volume = {{70}}, year = {{2004}}, }