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Hopping Conduction in Mn Ion-Implanted GaAs Nanowires.

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Author

  • Waldomiro Paschoal
  • Sandeep Kumar
  • Christian Borschel
  • Phillip Wu
  • Carlo M Canali
  • Carsten Ronning
  • Lars Samuelson
  • Håkan Pettersson

Summary, in English

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.

Publishing year

2012

Language

English

Pages

4838-4842

Publication/Series

Nano Letters

Volume

12

Issue

9

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano Technology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1530-6992