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Transport through an isolated artificial molecule formed from stacked self-assembled quantum dots

Bryllert, Tomas LU ; Borgström, Magnus LU ; Wernersson, Lars-Erik LU ; Seifert, Werner LU and Samuelson, Lars LU (2003) In Applied Physics Letters 82(16). p.2655-2657
Abstract
We investigate resonant tunneling through two coupled self-assembled quantum dots. The strong confinement and the high crystalline quality provided by the self-assembled dots, in combination with the tunneling coupling between the dots, create a system that may be thought of as an artificial molecule. We are able to isolate one single artificial molecule and detailed investigations of the electrical properties are performed. Peak-to-valley ratios above 1000 and full width half maximum of a few millivolts are measured at 4 K. By changing the temperature we also observe Coulomb blockade effects in a different way. (C) 2003 American Institute of Physics.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics Letters
volume
82
issue
16
pages
2655 - 2657
publisher
American Institute of Physics
external identifiers
  • wos:000182258800035
  • scopus:0038221322
ISSN
0003-6951
DOI
10.1063/1.1569423
language
English
LU publication?
yes
id
24d266bd-6f59-4466-ac25-0da712a3298a (old id 313845)
date added to LUP
2007-08-27 12:15:43
date last changed
2017-01-01 04:29:23
@article{24d266bd-6f59-4466-ac25-0da712a3298a,
  abstract     = {We investigate resonant tunneling through two coupled self-assembled quantum dots. The strong confinement and the high crystalline quality provided by the self-assembled dots, in combination with the tunneling coupling between the dots, create a system that may be thought of as an artificial molecule. We are able to isolate one single artificial molecule and detailed investigations of the electrical properties are performed. Peak-to-valley ratios above 1000 and full width half maximum of a few millivolts are measured at 4 K. By changing the temperature we also observe Coulomb blockade effects in a different way. (C) 2003 American Institute of Physics.},
  author       = {Bryllert, Tomas and Borgström, Magnus and Wernersson, Lars-Erik and Seifert, Werner and Samuelson, Lars},
  issn         = {0003-6951},
  language     = {eng},
  number       = {16},
  pages        = {2655--2657},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Letters},
  title        = {Transport through an isolated artificial molecule formed from stacked self-assembled quantum dots},
  url          = {http://dx.doi.org/10.1063/1.1569423},
  volume       = {82},
  year         = {2003},
}