Effect of ion irradiation in cadmium niobate pyrochlores

W. Jiang, W. J. Weber, S. Thevuthasan, L. A. Boatner

    Research output: Contribution to journalConference article

    7 Citations (Scopus)

    Abstract

    Irradiation experiments have been performed for cadmium niobate (Cd2Nb2O7) pyrochlore single crystals at both 150 and 300 K using 1.0 MeV Au2+ ions over fluences ranging from 0.01 to 0.10 ions/nm2. In-situ 3.0 MeV He+ Rutherford backscattering spectrometry along the 〈1 0 0〉-axial channeling direction (RBS/C) has been applied to study the damage states ranging from small defect concentrations to a fully amorphous state. Results show that the crystal can be readily amorphized under the irradiation conditions. Room-temperature recovery of the defects produced at 150 K has been observed, while the defects produced at 300 K are thermally stable at room temperature. Results also indicate that the RBS/C analysis used in this study induced negligible damage in the near-surface regime. In addition, irradiation at and below room temperature using He+ and C3+ ions leads to surface exfoliation at the corresponding damage peaks.

    Original languageEnglish
    Pages (from-to)85-91
    Number of pages7
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume207
    Issue number1
    DOIs
    Publication statusPublished - 1 May 2003
    EventSymposium: Ion beam processing and modification of glasses and - St.Louis, Missouri, United States
    Duration: 28 Apr 20021 May 2002

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    Keywords

    • Ion channeling
    • Ion cleaving
    • Ion irradiation
    • Lattice disorder
    • Pyrochlores

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Instrumentation

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