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Imaging a one-electron InAs quantum dot in an InAs/InP nanowire

Bleszynski-Jayich, Ania C. ; Fröberg, Linus LU ; Björk, Mikael LU ; Trodahl, H. J. ; Samuelson, Lars LU and Westervelt, R. M. (2008) In Physical Review B (Condensed Matter and Materials Physics) 77(24).
Abstract
Nanowire heterostructures define high-quality few-electron quantum dots for nanoelectronics, spintronics, and quantum information processing. We use a cooled scanning probe microscope (SPM) to image and control an InAs quantum dot in an InAs/InP nanowire using the tip as a movable gate. Images of dot conductance vs tip position at T=4.2 K show concentric rings as electrons are added, starting with the first electron. The SPM can locate a dot along a nanowire and individually tune its charge, abilities that will be very useful for the control of coupled nanowire dots.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B (Condensed Matter and Materials Physics)
volume
77
issue
24
article number
245327
publisher
American Physical Society
external identifiers
  • wos:000257289700086
  • scopus:46149119169
ISSN
1098-0121
DOI
10.1103/PhysRevB.77.245327
language
English
LU publication?
yes
id
6989809c-74a9-44bd-a69f-3e84dfb03ff2 (old id 1256899)
date added to LUP
2016-04-01 13:54:25
date last changed
2022-01-27 21:49:14
@article{6989809c-74a9-44bd-a69f-3e84dfb03ff2,
  abstract     = {{Nanowire heterostructures define high-quality few-electron quantum dots for nanoelectronics, spintronics, and quantum information processing. We use a cooled scanning probe microscope (SPM) to image and control an InAs quantum dot in an InAs/InP nanowire using the tip as a movable gate. Images of dot conductance vs tip position at T=4.2 K show concentric rings as electrons are added, starting with the first electron. The SPM can locate a dot along a nanowire and individually tune its charge, abilities that will be very useful for the control of coupled nanowire dots.}},
  author       = {{Bleszynski-Jayich, Ania C. and Fröberg, Linus and Björk, Mikael and Trodahl, H. J. and Samuelson, Lars and Westervelt, R. M.}},
  issn         = {{1098-0121}},
  language     = {{eng}},
  number       = {{24}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review B (Condensed Matter and Materials Physics)}},
  title        = {{Imaging a one-electron InAs quantum dot in an InAs/InP nanowire}},
  url          = {{http://dx.doi.org/10.1103/PhysRevB.77.245327}},
  doi          = {{10.1103/PhysRevB.77.245327}},
  volume       = {{77}},
  year         = {{2008}},
}