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

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 proceeding › Conference 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 Ti_0.89Nb _0.06CO_0.05O₂ 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 language	English
Title of host publication	Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005
Publisher	World Scientific Publishing Co. Pte Ltd
Pages	191-193
Number of pages	3
ISBN (Print)	9812568581, 9789812568588
Publication status	Published - 2006 Jan 1
Event	8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005 - Hatoyama, Saitama, Japan Duration: 2005 Aug 22 → 2005 Aug 25

Publication series

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

Other

Other	8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005
Country	Japan
City	Hatoyama, Saitama
Period	05/8/22 → 05/8/25

Keywords

Diluted magnetic semiconductor
Ferromagnetism
Oxides

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Hitosugi, T., Shimada, T., Hasegawa, T., Kinoda, G., Inaba, K., Yamamoto, Y., Furubayashi, Y., & Hirose, Y. (2006). Ferromagnetism in anatase TiO₂ codoped with Co and Nb. In Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005 (pp. 191-193). (Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005). World Scientific Publishing Co. Pte Ltd.

Ferromagnetism in anatase TiO₂ codoped with Co and Nb. / Hitosugi, T.; Shimada, T.; Hasegawa, T.; Kinoda, G.; Inaba, K.; Yamamoto, Y.; Furubayashi, Y.; Hirose, Y.

Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005. World Scientific Publishing Co. Pte Ltd, 2006. p. 191-193 (Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hitosugi, T, Shimada, T, Hasegawa, T, Kinoda, G, Inaba, K, Yamamoto, Y, Furubayashi, Y & Hirose, Y 2006, Ferromagnetism in anatase TiO₂ codoped with Co and Nb. in Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005. Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005, World Scientific Publishing Co. Pte Ltd, pp. 191-193, 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005, Hatoyama, Saitama, Japan, 05/8/22.

Hitosugi T, Shimada T, Hasegawa T, Kinoda G, Inaba K, Yamamoto Y et al. Ferromagnetism in anatase TiO₂ codoped with Co and Nb. In Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005. World Scientific Publishing Co. Pte Ltd. 2006. p. 191-193. (Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005).

Hitosugi, T. ; Shimada, T. ; Hasegawa, T. ; Kinoda, G. ; Inaba, K. ; Yamamoto, Y. ; Furubayashi, Y. ; Hirose, Y. / Ferromagnetism in anatase TiO₂ codoped with Co and Nb. Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005. World Scientific Publishing Co. Pte Ltd, 2006. pp. 191-193 (Proceedings of the 8th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2005).

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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.",

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AU - Shimada, T.

AU - Hasegawa, T.

AU - Kinoda, G.

AU - Inaba, K.

AU - Yamamoto, Y.

AU - Furubayashi, Y.

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AB - 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.

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