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Evidence of oxygen vacancy enhanced room-temperature ferromagnetism in Co-doped ZnO
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10.1063/1.2212277
/content/aip/journal/apl/88/24/10.1063/1.2212277
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/24/10.1063/1.2212277
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) The magnetization vs magnetic field curves for the as-deposited and annealed Co:ZnO films measured at room temperature.

Image of FIG. 2.
FIG. 2.

(Color online) The Co -edge XANES for the as-deposited sample and annealed films. The XANES of Co foil and Co oxides are also provided for reference. Inset (a) shows the FT amplitudes of Co -edge EXAFS for the as-deposited and annealed films together with the Zn edge of ZnO for reference. Inset (b) shows the HRTEM image for the -annealed sample.

Image of FIG. 3.
FIG. 3.

(Color online) The Zn -edge XANES for the ZnO , as-deposited, and annealed films. The inset shows the first derivative of XANES for these films.

Image of FIG. 4.
FIG. 4.

(Color online) Theoretical XANES (a) and their first derivative (b) on Zn edge from FEFF simulation for a ZnO cell cluster (27 atoms) and several structural variants, including the influence of Co substitution and oxygen vacancies.

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/content/aip/journal/apl/88/24/10.1063/1.2212277
2006-06-16
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Evidence of oxygen vacancy enhanced room-temperature ferromagnetism in Co-doped ZnO
http://aip.metastore.ingenta.com/content/aip/journal/apl/88/24/10.1063/1.2212277
10.1063/1.2212277
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