Anomalous Hall effect in anatase Ti1-xCoxO 2-δ above room temperature

K. Ueno, T. Fukumura, H. Toyosaki, M. Nakano, T. Yamasaki, Y. Yamada, M. Kawasaki

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Presence of spin polarized electrons was confirmed by observing anomalous Hall effect in a ferromagnetic semiconductor anatase Ti1-x Cox O2-δ up to 600 K. The anomalous Hall resistivity exhibited apparent ferromagnetic hysteresis loop from 300 to 600 K with insignificant change in the magnitude, indicating that the Curie temperature is higher than 600 K. The measurements above 500 K induced an annealing effect represented by the decrease in resistivity, whereas kept the anomalous Hall resistivity nearly constant.

本文言語English
論文番号07D114
ジャーナルJournal of Applied Physics
103
7
DOI
出版ステータスPublished - 2008

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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