Ferromagnetism in anatase TiO2 codoped with Co and Nb

T. Hitosugi, T. Shimada, T. Hasegawa, G. Kinoda, K. Inaba, Y. Yamamoto, Y. Furubayashi, Y. Hirose

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Magneto-optical Faraday rotation angle of ferromagnetic anatase Co-doped TiO2 films is enhanced and can be controlled by Nb doping. A carrier density of films can be varied by Nb doping in this room-temperature ferromagnetic degenerate semiconductor. A Ti0.89Nb 0.06CO0.05O2 film showed a Faraday rotation angle of 1.5 × 104 deg/cm at 400 nm. An anomalous Hall effect, showing that the charge carriers are spin polarized, is observed in this film.

    Original languageEnglish
    Title of host publicationProceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005
    PublisherWorld Scientific Publishing Co. Pte Ltd
    Pages191-193
    Number of pages3
    ISBN (Print)9812568581, 9789812568588
    Publication statusPublished - 2006 Jan 1
    Event8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005 - Hatoyama, Saitama, Japan
    Duration: 2005 Aug 222005 Aug 25

    Publication series

    NameProceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005

    Other

    Other8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005
    CountryJapan
    CityHatoyama, Saitama
    Period05/8/2205/8/25

    Keywords

    • Diluted magnetic semiconductor
    • Ferromagnetism
    • Oxides

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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