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Few electron double quantum dots in InAs/InP nanowire heterostructures

Fuhrer, Andreas LU ; Fröberg, Linus LU ; Pedersen, Jonas LU ; Larsson, Magnus LU ; Wacker, Andreas LU ; Pistol, Mats-Erik LU and Samuelson, Lars LU (2007) In Nano Letters 7(2). p.243-246
Abstract
We report on fabrication of double quantum dots in catalytically grown InAs/InP nanowire heterostructures. In the few-electron regime, starting with both dots empty, our low-temperature transport measurements reveal a clear shell structure for sequential charging of the larger of the two dots with up to 12 electrons. The resonant current through the double dot is found to depend on the orbital coupling between states of different radial symmetry. The charging energies are well described by a capacitance model if next-neighbor capacitances are taken into account.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nano Letters
volume
7
issue
2
pages
243 - 246
publisher
The American Chemical Society
external identifiers
  • wos:000244206500005
  • scopus:33847772846
ISSN
1530-6992
DOI
10.1021/nl061913f
language
English
LU publication?
yes
id
dff86945-a436-4e71-8139-7cbd59c9ff6e (old id 674513)
date added to LUP
2007-12-07 11:34:56
date last changed
2017-08-20 04:27:04
@article{dff86945-a436-4e71-8139-7cbd59c9ff6e,
  abstract     = {We report on fabrication of double quantum dots in catalytically grown InAs/InP nanowire heterostructures. In the few-electron regime, starting with both dots empty, our low-temperature transport measurements reveal a clear shell structure for sequential charging of the larger of the two dots with up to 12 electrons. The resonant current through the double dot is found to depend on the orbital coupling between states of different radial symmetry. The charging energies are well described by a capacitance model if next-neighbor capacitances are taken into account.},
  author       = {Fuhrer, Andreas and Fröberg, Linus and Pedersen, Jonas and Larsson, Magnus and Wacker, Andreas and Pistol, Mats-Erik and Samuelson, Lars},
  issn         = {1530-6992},
  language     = {eng},
  number       = {2},
  pages        = {243--246},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {Few electron double quantum dots in InAs/InP nanowire heterostructures},
  url          = {http://dx.doi.org/10.1021/nl061913f},
  volume       = {7},
  year         = {2007},
}