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

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18 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number07D114
JournalJournal of Applied Physics
Volume103
Issue number7
DOIs
Publication statusPublished - 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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