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