Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires

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

doi:10.1063/1.2836800

Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires

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

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

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 language	English (US)
Article number	07D710
Journal	Journal of Applied Physics
Volume	103
Issue number	7
DOIs	https://doi.org/10.1063/1.2836800
State	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires",

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.",

author = "Xiaojing Zou and Gang Xiao and Sunxiang Huang and Tingyong Chen and Chien, {Chia Ling}",

note = "Funding Information: This work was supported at Brown University in part by the NSF under Grant No. DMR-0605966. We also gratefully acknowledge partial support from JHU MRSEC (NSF DMR-0520491).",

year = "2008",

doi = "10.1063/1.2836800",

language = "English (US)",

volume = "103",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

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TY - JOUR

T1 - Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires

AU - Zou, Xiaojing

AU - Xiao, Gang

AU - Huang, Sunxiang

AU - Chen, Tingyong

AU - Chien, Chia Ling

N1 - Funding Information: This work was supported at Brown University in part by the NSF under Grant No. DMR-0605966. We also gratefully acknowledge partial support from JHU MRSEC (NSF DMR-0520491).

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 7

M1 - 07D710

ER -

Magnetotransport properties of polycrystalline and epitaxial chromium dioxide nanowires

Abstract

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