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Tunneling spectroscopy of a quantum dot through a single impurity

Lind, Erik LU ; Gustafson, Boel LU ; Pietzonka, I. and Wernersson, Lars-Erik LU (2003) In Physical Review B (Condensed Matter and Materials Physics) 68(3). p.4-4
Abstract
A single impurity inside a resonant tunneling diode is used to perform tunneling spectroscopy on an adjacent electrostatically defined vertical quantum dot. This results in tunneling between two zero-dimensional systems, measured as a set of sharp peaks in the current-voltage spectrum for finite bias. Magnetic-field-dependent measurements show that the angular momentum of the tunneling electrons is conserved during the tunneling process. Both ground and excited states are probed. The effect of temperature is also investigated, exhibiting a peak broadening that is smaller than 1 kT.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
WELLS, STATES
in
Physical Review B (Condensed Matter and Materials Physics)
volume
68
issue
3
pages
4 - 4
publisher
American Physical Society
external identifiers
  • wos:000185229600024
  • scopus:0344739896
ISSN
1098-0121
DOI
10.1103/PhysRevB.68.033312
language
English
LU publication?
yes
id
8f871da9-7452-4cc0-a509-350fc1da3438 (old id 1417240)
date added to LUP
2009-06-12 12:32:14
date last changed
2017-01-01 07:20:14
@article{8f871da9-7452-4cc0-a509-350fc1da3438,
  abstract     = {A single impurity inside a resonant tunneling diode is used to perform tunneling spectroscopy on an adjacent electrostatically defined vertical quantum dot. This results in tunneling between two zero-dimensional systems, measured as a set of sharp peaks in the current-voltage spectrum for finite bias. Magnetic-field-dependent measurements show that the angular momentum of the tunneling electrons is conserved during the tunneling process. Both ground and excited states are probed. The effect of temperature is also investigated, exhibiting a peak broadening that is smaller than 1 kT.},
  author       = {Lind, Erik and Gustafson, Boel and Pietzonka, I. and Wernersson, Lars-Erik},
  issn         = {1098-0121},
  keyword      = {WELLS,STATES},
  language     = {eng},
  number       = {3},
  pages        = {4--4},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Tunneling spectroscopy of a quantum dot through a single impurity},
  url          = {http://dx.doi.org/10.1103/PhysRevB.68.033312},
  volume       = {68},
  year         = {2003},
}