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Nano Lett. 2009 Dec;9(12):3991-5. doi: 10.1021/nl902152c.

Weak localization and electron-electron interactions in indium-doped ZnO nanowires.

Author information

1
Department of Physics, University of Southern California, Los Angeles, California 90089-0484, USA. rsthom@usc.edu

Abstract

Single crystal ZnO nanowires doped with indium are synthesized via the laser-assisted chemical vapor deposition method. The conductivity of the nanowires is measured at low temperatures in magnetic fields with directions both perpendicular and parallel to the wire axes. A quantitative fit of our data is obtained, consistent with the theory of a quasi-one-dimensional metallic system with quantum corrections due to weak localization and electron-electron interactions. The anisotropy of the magneto-conductivity agrees with theory. The two quantum corrections are of approximately equal magnitude with respective temperature dependences of T(-1/3)and T(-1/2). The alternative model of quasi-two-dimensional surface conductivity is excluded by the absence of oscillations in the magneto-conductivity in parallel magnetic fields.

PMID:
19831413
DOI:
10.1021/nl902152c
[Indexed for MEDLINE]
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