Stable ferromagnetism in p -type carbon-doped ZnO nanoneedles

T. S. Herng; Shu Ping Lau; C. S. Wei; L. Wang; B. C. Zhao; M. Tanemura; Y. Akaike

doi:10.1063/1.3238289

Stable ferromagnetism in p -type carbon-doped ZnO nanoneedles

T. S. Herng, Shu Ping Lau, C. S. Wei, L. Wang, B. C. Zhao, M. Tanemura, Y. Akaike

Research output: Journal article publication › Journal article › Academic research › peer-review

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Abstract

The authors report the synthesis and magnetic properties of carbon-doped ZnO (ZnO:C) nanoneedles. A saturated magnetic moment of 2.16 emu/cm3was found in the ZnO:C nanoneedles. The samples showed anomalous Hall effect and p -type conduction with a hole concentration of 1.8× 1018cm-3. The ferromagnetism in the ZnO:C nanoneedles could be attributed to C substitution on the O site which introduces hole, so the p-p interaction leads to the strong spin interaction between the C atoms and carriers. It was found that the ferromagnetism and p-type conduction in the ZnO:C nanoneedles were stable in ambient air over a period of 1 year and annealing temperature of up to 100 °C.

Original language	English
Article number	133103
Journal	Applied Physics Letters
Volume	95
Issue number	13
DOIs	https://doi.org/10.1063/1.3238289
Publication status	Published - 12 Oct 2009

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3238289

http://hdl.handle.net/10397/2467

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abstract = "The authors report the synthesis and magnetic properties of carbon-doped ZnO (ZnO:C) nanoneedles. A saturated magnetic moment of 2.16 emu/cm3was found in the ZnO:C nanoneedles. The samples showed anomalous Hall effect and p -type conduction with a hole concentration of 1.8× 1018cm-3. The ferromagnetism in the ZnO:C nanoneedles could be attributed to C substitution on the O site which introduces hole, so the p-p interaction leads to the strong spin interaction between the C atoms and carriers. It was found that the ferromagnetism and p-type conduction in the ZnO:C nanoneedles were stable in ambient air over a period of 1 year and annealing temperature of up to 100 °C.",

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AU - Herng, T. S.

AU - Lau, Shu Ping

AU - Wei, C. S.

AU - Wang, L.

AU - Zhao, B. C.

AU - Tanemura, M.

AU - Akaike, Y.

PY - 2009/10/12

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N2 - The authors report the synthesis and magnetic properties of carbon-doped ZnO (ZnO:C) nanoneedles. A saturated magnetic moment of 2.16 emu/cm3was found in the ZnO:C nanoneedles. The samples showed anomalous Hall effect and p -type conduction with a hole concentration of 1.8× 1018cm-3. The ferromagnetism in the ZnO:C nanoneedles could be attributed to C substitution on the O site which introduces hole, so the p-p interaction leads to the strong spin interaction between the C atoms and carriers. It was found that the ferromagnetism and p-type conduction in the ZnO:C nanoneedles were stable in ambient air over a period of 1 year and annealing temperature of up to 100 °C.

AB - The authors report the synthesis and magnetic properties of carbon-doped ZnO (ZnO:C) nanoneedles. A saturated magnetic moment of 2.16 emu/cm3was found in the ZnO:C nanoneedles. The samples showed anomalous Hall effect and p -type conduction with a hole concentration of 1.8× 1018cm-3. The ferromagnetism in the ZnO:C nanoneedles could be attributed to C substitution on the O site which introduces hole, so the p-p interaction leads to the strong spin interaction between the C atoms and carriers. It was found that the ferromagnetism and p-type conduction in the ZnO:C nanoneedles were stable in ambient air over a period of 1 year and annealing temperature of up to 100 °C.

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Stable ferromagnetism in p -type carbon-doped ZnO nanoneedles

Abstract

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