Magnetism and clustering in Cu doped ZnO
APPLIED PHYSICS LETTERS 92, 182509 (2008) 182507-1-182507-3 ，-0001，（）：
The influence of defect charge state on the magnetism of Cu doped ZnO as well as the Cu defects clustering have been investigated by the first-principles calculations. We demonstrate that p-type ZnO:Cu could have ferromagnetic (FM) property, but n-type ZnO:Cu would not have local magnetic moment. Furthermore, the neutral substitutive Cu defects are found to be favorable in clustering, which maintains the FM ordering.
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