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Hopping Conduction in Mn Ion-Implanted GaAs Nanowires.

Paschoal, Waldomiro LU ; Kumar, Sandeep LU ; Borschel, Christian; Wu, Phillip LU ; Canali, Carlo M; Ronning, Carsten; Samuelson, Lars LU and Pettersson, Håkan (2012) In Nano Letters 12(9). p.4838-4842
Abstract
We report on temperature-dependent charge transport in heavily doped Mn(+)-implanted GaAs nanowires. The results clearly demonstrate that the transport is governed by temperature-dependent hopping processes, with a crossover between nearest neighbor hopping and Mott variable range hopping at about 180 K. From detailed analysis, we have extracted characteristic hopping energies and corresponding hopping lengths. At low temperatures, a strongly nonlinear conductivity is observed which reflects a modified hopping process driven by the high electric field at large bias.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nano Letters
volume
12
issue
9
pages
4838 - 4842
publisher
The American Chemical Society
external identifiers
  • wos:000308576000069
  • pmid:22889471
  • scopus:84866332692
ISSN
1530-6992
DOI
10.1021/nl302318f
language
English
LU publication?
yes
id
0ad8ed23-f2ed-4915-8fcd-e5f9e18ba024 (old id 3047563)
date added to LUP
2012-09-10 15:13:55
date last changed
2017-11-19 03:47:18
@article{0ad8ed23-f2ed-4915-8fcd-e5f9e18ba024,
  abstract     = {We report on temperature-dependent charge transport in heavily doped Mn(+)-implanted GaAs nanowires. The results clearly demonstrate that the transport is governed by temperature-dependent hopping processes, with a crossover between nearest neighbor hopping and Mott variable range hopping at about 180 K. From detailed analysis, we have extracted characteristic hopping energies and corresponding hopping lengths. At low temperatures, a strongly nonlinear conductivity is observed which reflects a modified hopping process driven by the high electric field at large bias.},
  author       = {Paschoal, Waldomiro and Kumar, Sandeep and Borschel, Christian and Wu, Phillip and Canali, Carlo M and Ronning, Carsten and Samuelson, Lars and Pettersson, Håkan},
  issn         = {1530-6992},
  language     = {eng},
  number       = {9},
  pages        = {4838--4842},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {Hopping Conduction in Mn Ion-Implanted GaAs Nanowires.},
  url          = {http://dx.doi.org/10.1021/nl302318f},
  volume       = {12},
  year         = {2012},
}