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XANES and XPS Study on Microstructure of Mn-Doped ZnO Films
Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
- 1 Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
- 2 Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
- 3 Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
- 4 Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
- 5 Applied Ion Beam Physics Laboratory (Key Laboratory of the Ministry of Education), Institute of Modern Physics, Fudan University, Shanghai, China; Department of Nuclear Science and Technology, Fudan University, Shanghai, China
Materials Sciences and Applications·Volume 04 (2013)·Pages 307–311·Published 21 May 2013·DOI10.4236/msa.2013.45039
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Abstract
Microstructure of ZnO:Mn films with various Mn concentration was investigated with XANES and XPS. The experi mental results revealed a substitution of Mn in ZnO and also excluded the existence of Mn oxides or metallic manga nese clusters. The substitutional Mn presented a divalent state and all the ZnO:Mn films were n-type. Room temperature ferromagnetism monotonously decreases with the decrease of the electron carrier concentration. The observed ferr magnetism should come from the carrier-mediated exchange.
KeywordsZnO-Based DMSMn SubstitutionXANESXPS
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