High-pressure high-temperature synthesis and structure of β-MgSiN2

M. Andrade, D. Dzivenko, G. Miehe, R. Boehler, H.T.J.M. Hintzen, R. Riedel

    Research output: Contribution to journalArticleAcademicpeer-review

    8 Citations (Scopus)

    Abstract

    A new phase of magnesium silicon nitride, ß-MgSiN2, is synthesized in a laser-heated diamond anvil cell at pressure of 27 GPa and temperatures exceeding 2000 K. It crystallises in a rhombohedral caswellsilverite-type structure (space group with both Mg and Si atoms in octahedral coordinations – in agreement with earlier DFT calculations. In contrast to recent shock compression investigation, the ß-phase is found to metastably persist at ambient conditions.
    Original languageEnglish
    Pages (from-to)196-198
    Number of pages3
    JournalPhysica Status Solidi : Rapid Research Letters
    Volume5
    Issue number5-6
    DOIs
    Publication statusPublished - 2011

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