Room-temperature ferromagnetism in ion-implanted Co-doped TiO 2(110) rutile

V. Shutthanandan, S. Thevuthasan, S. M. Heald, T. Droubay, M. H. Engelhard, T. C. Kaspar, D. E. McCready, L. Saraf, S. A. Chambers, B. S. Mun, N. Hamdan, P. Nachimuthu, B. Taylor, R. P. Sears, B. Sinkovic

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Abstract

The synthesis of ferromagnetic Co-doped rutile TiO 2 single crystals was studied using high temperature ion implantation. Co was found to be uniformly distributed to a depth of ∼300 nm with an average concentration of ∼2 at.%. It was also found that the crystals exhibited ferromagnetic behavior at room temperature with an effective saturation magnetization of ∼0.6 μ B/Co atom. It was also found that the Co was in a formal oxidation state of +2 throughout the implanted region, and moreover no Co(O) was detected.

Original languageEnglish
Pages (from-to)4466-4468
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number22
DOIs
Publication statusPublished - 31 May 2004
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Shutthanandan, V., Thevuthasan, S., Heald, S. M., Droubay, T., Engelhard, M. H., Kaspar, T. C., McCready, D. E., Saraf, L., Chambers, S. A., Mun, B. S., Hamdan, N., Nachimuthu, P., Taylor, B., Sears, R. P., & Sinkovic, B. (2004). Room-temperature ferromagnetism in ion-implanted Co-doped TiO 2(110) rutile. Applied Physics Letters, 84(22), 4466-4468. https://doi.org/10.1063/1.1753652