Feromagnetism from oxygen vacancies

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Tapan Chatterji

First principle calculations in TiO2 show that the valence electron by oxygen vacancy occupy mainly the neighboring Ti:3d orbital which then becomes spin polarized due to inter-atomic exchange interaction, thereby giving rise to half-metallic ferromagnetism. The magnetization induced is roughly proportional to to the oxygen vacancy concentration. See Ref: Phys. Status Solidi RRL 3, No. 5, 148 – 150 (2009) / DOI 10.1002/pssr.200903078

Also read the review article in Science by H. Ohno: SCIENCE VOL 281 14 AUGUST 1998 p.951

Tejabhiram Yadavalli

Hello Dr.Tapan, could you please send me the article as its not available with our university library network?

Thank you for the info