Synthesis of room-temperature ferromagnetic Cr-doped TiO2(1 1 0) rutile single crystals using ion implantation

V. Shutthanandan, S. Thevuthasan, T. Droubay, S. M. Heald, M. H. Engelhard, D. E. McCready, S. A. Chambers, P. Nachimuthu, B. S. Mun

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    Abstract

    Ferromagnetic Cr-doped rutile TiO2 single crystals were synthesized by high-temperature ion implantation. The associated structural, compositional and magnetic properties were studied by X-ray photoelectron spectroscopy, Rutherford backscattering spectrometry, proton induced X-ray emission, X-ray diffraction, Cr K- and L-shell near-edge X-ray absorption spectroscopy and vibrating sample magnetometry. Cr was distributed uniformly to the depth of about 300 nm with an average concentration of ∼1 at.%. The samples are semiconducting and ferromagnetic as implanted, with a saturation magnetization of 0.29μB/Cr atom at room temperature. Cr is in a formal oxidation state of +3 throughout the implanted region and no CrO 2 is detected.

    Original languageEnglish
    Pages (from-to)198-200
    Number of pages3
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume242
    Issue number1-2
    DOIs
    Publication statusPublished - 1 Jan 2006

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    Keywords

    • Chromium
    • Ferromagnetic materials
    • Ion simplantation
    • Rutile TiO
    • Vibrating sample magnetometry

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Instrumentation

    Cite this

    Shutthanandan, V., Thevuthasan, S., Droubay, T., Heald, S. M., Engelhard, M. H., McCready, D. E., Chambers, S. A., Nachimuthu, P., & Mun, B. S. (2006). Synthesis of room-temperature ferromagnetic Cr-doped TiO2(1 1 0) rutile single crystals using ion implantation. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 242(1-2), 198-200. https://doi.org/10.1016/j.nimb.2005.08.149