Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires

Xiaojing Zou, Gang Xiao, Sunxiang Huang, Tingyong Chen, Chia Ling Chien

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Temperature dependent magnetotransport measurements were performed on polycrystalline and epitaxial chromium dioxide (Cr O2) nanowires fabricated using the selective-area growth technique. Polycrystalline nanowires showed a negative temperature coefficient of resistivity at low temperatures because of strong grain boundary scattering. The magnetoresistance (MR) value exhibited a width dependence, reaching a maximum of 20% for a 150 nm wide wire. In contrast, the MR response of single crystal Cr O2 wires was mainly determined by magnetocrystalline and shape anisotropy.

Original languageEnglish (US)
Article number07D710
JournalJournal of Applied Physics
Volume103
Issue number7
DOIs
StatePublished - 2008
Externally publishedYes

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dioxides
chromium
nanowires
wire
grain boundaries
anisotropy
electrical resistivity
temperature
single crystals
coefficients
scattering

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires. / Zou, Xiaojing; Xiao, Gang; Huang, Sunxiang; Chen, Tingyong; Chien, Chia Ling.

In: Journal of Applied Physics, Vol. 103, No. 7, 07D710, 2008.

Research output: Contribution to journalArticle

Zou, Xiaojing ; Xiao, Gang ; Huang, Sunxiang ; Chen, Tingyong ; Chien, Chia Ling. / Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires. In: Journal of Applied Physics. 2008 ; Vol. 103, No. 7.
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