Enhancement of Magneto-Optical Properties of Anatase Co:TiO2 Co-Doped with Nb

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概要

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• We have fabricated Ti0.95-xNbxCo0.05O2 thin films by the pulsed laser deposition technique. Carrier density was found to be almost identical to the Nb concentration up to $x=0.06$, indicating that doped Nb atoms generate carriers with ${>}80$% efficiency. In this doping range, magneto-optical properties were significantly enhanced by Nb-doping. The remanent Faraday rotation at a wavelength of 405 nm was as high as $5.6 \times 10^{3}$ deg/cm, which is approximately one order of magnitude higher than that of a film free of Nb-doping. The present results support the hypothesis that conduction electrons play an essential role in the ferromagnetism of Co-doped TiO2.

• Japan Society of Applied Physicsの論文
• 2006-04-25

著者

• FURUBAYASHI Yutaka

  Kanagawa Academy of Science and Technology (KAST)

• SHIMADA Toshihiro

  Kanagawa Academy of Science and Technology (KAST)

• HASEGAWA Tetsuya

  Kanagawa Academy of Science and Technology (KAST)

• HITOSUGI Taro

  Kanagawa Academy of Science and Technology (KAST)

• KINODA Go

  Kanagawa Academy of Science and Technology (KAST)

• YAMAMOTO Yukio

  Kanagawa Academy of Science and Technology (KAST)

• INABA Kazuhisa

  Kanagawa Academy of Science and Technology (KAST)

• Hirose Yasushi

  Kanagawa Academy Of Science And Technology

• Hirose Yasushi

  Kanagawa Academy of Science and Technology (KAST), Kawasaki 213-0012, Japan

• Inaba Kazuhisa

  Kanagawa Academy of Science and Technology (KAST), Kawasaki 213-0012, Japan

• Yamamoto Yukio

  Kanagawa Academy of Science and Technology (KAST), Kawasaki 213-0012, Japan

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