Origin of Ferromagnetism in Co-Ion-Implanted Anatase TiO2 Thin Films
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概要
- 論文の詳細を見る
Ferromagnetic Co-doped anatase TiO2 films were prepared by implantation of Co ions into TiO2 thin films using a metal vapor vacuum arc ion source at various beam currents. The saturation magnetization ($M_{\text{s}}$) of these films increased with annealing temperature. The maximum $M_{\text{s}}$ observed was about 2.3 $\mu_{\text{B}}$/Co. High-resolution transmission electron microscopy and X-ray photoelectron spectrometry were performed to study the possible origin of the ferromagnetism. It is believed that the high magnetic moment values observed are associated with Co atoms doped to the Ti2+ sites and the intermediate spin state.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2007-09-15
著者
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Li Quan
Department Of Diving Medicine Faculty Of Navy Medicine Second Military Medical University
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Ke Ning
Department Of Ophthalmology Children's Hospital Chongqing Medical University Chongqing People's Republic Of China
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Cheng Kai
Department of Electronic Engineering, The Chinese University of Hong Kong, N. T., Satin, Hong Kong
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Gao Yun
Key Lab of Ferroelectric and Piezoelectric Materials and Devices of Hubei Province, Faculty of Physics and Electronic Technology, Hubei University, Wuhan 430062, P. R. China
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Wong Sai
Department of Electronic Engineering, The Chinese University of Hong Kong, N. T., Satin, Hong Kong
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Cheung Wing
Department of Electronic Engineering, The Chinese University of Hong Kong, N. T., Satin, Hong Kong
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Shao Guo
Centre for Materials Research and Innovation, University of Bolton, Bolton BL3 5AB, U.K.
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Li Quan
Department of Physics, The Chinese University of Hong Kong, N. T., Satin, Hong Kong
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Wong Sai
Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, P. R. China
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Ke Ning
Department of Electronic Engineering, The Chinese University of Hong Kong, N. T., Satin, Hong Kong
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