Functional complex point-defect structure in a huge-size-mismatch system

Ryo Ishikawa, Naoya Shibata, Fumiyasu Oba, Takashi Taniguchi, Scott D. Findlay, Isao Tanaka, Yuichi Ikuhara

    Research output: Contribution to journalArticlepeer-review

    30 Citations (Scopus)

    Abstract

    Cubic boron nitride is a promising system for photonics and optoelectronics. Determining the inclusion mechanisms for dopants with a large size mismatch, such as luminous rare-earth elements, is prerequisite to understanding their functional properties and to effective doping control. Combining evidence from subangstrom resolution scanning transmission electron microscopy, imaging simulations, and first-principles calculations, we show that cationic Ce3+ single dopants are not located at cationic B sites but rather at anionic N sites surrounded by B-site vacancies.

    Original languageEnglish
    Article number065504
    JournalPhysical review letters
    Volume110
    Issue number6
    DOIs
    Publication statusPublished - 2013 Feb 7

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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