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Stable ferromagnetism in -type carbon-doped ZnO nanoneedles
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10.1063/1.3238289
/content/aip/journal/apl/95/13/10.1063/1.3238289
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/13/10.1063/1.3238289
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Typical XRD patterns of the ZnO and ZnO:C nanoneedles. Inset is the SEM image of the ZnO:C nanoneedles array, showing the cone sharp with an average length of 250–600 nm.

Image of FIG. 2.
FIG. 2.

(a) Magnetic properties of the ZnO:C nanoneedles measured at 5 and 300 K. The inset shows enlarged view of hysteresis loops. (b) ZFC-FC curves of the ZnO:C nanoneedles.

Image of FIG. 3.
FIG. 3.

The magnetic field dependence of anomalous Hall resistivity of the ZnO:C nanoneedles measured at 300 K. The applied magnetic field is perpendicular to the sample’s plane with constant current of 0.01 mA. The data after background subtraction is displayed in the inset.

Image of FIG. 4.
FIG. 4.

The saturated magnetic moment and hole concentration of the ZnO:C nanoneedles as a function of storage time. The inset shows the dependence of the ZnO:C nanoneedles as a function of annealing temperature.

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/content/aip/journal/apl/95/13/10.1063/1.3238289
2009-09-28
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Stable ferromagnetism in p-type carbon-doped ZnO nanoneedles
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/13/10.1063/1.3238289
10.1063/1.3238289
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