著者

山口 一弘 林 永子 弥生 宗男 井上 光輝

出版者

茨城工業高等専門学校

雑誌

茨城工業高等専門学校研究彙報 (ISSN:02863391)

巻号頁・発行日

vol.45, pp.71-74, 2010-03-01

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In an attempt to obtain diluted ferromagnetic semiconductors,we prepared Co-doped Tio2 films on glass substrates by sol-gel synthesis.X-ray diffraction patterns of films with Co low concentration Cco under 5% and high Cco such as 15% were assigned to anatase and rutile TiO2,respectively.All films showed ferromagnetic behavior at room temperature.Their magnetooptical Faraday spectra were quite different from those of cobalt films and clusters.This result suggested that the origin of ferromagnetism is assigned to Co-substituted TiO2.