High pressure Raman spectroscopy of spinel-type ferrite ZnFe 2O4

Zhongwu Wang*, David Schiferl, Yusheng Zhao, H. St C. O'Neill

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    255 Citations (Scopus)

    Abstract

    An in-situ Raman spectroscopic study was conducted to explore the pressure induced phase transformation of spinel-type ferrite ZnFe2O 4. Results indicate that ferrite ZnFe2O4 initially transforms to an orthorhombic structure phase (CaFe2O 4-polymorph) at a pressure of 24.6 GPa. Such a phase transformation is complete at 34.2 GPa, and continuously remains stable to the peak pressure of 61.9 GPa. The coexistence of the two phases over a wide range of pressure implies a sluggish mechanism upon the spinel-to-orthorhombic phase transition. Upon release of pressure, the high pressure ZnFe2O4 polymorph is quenchable at ambient conditions.

    Original languageEnglish
    Pages (from-to)2517-2523
    Number of pages7
    JournalJournal of Physics and Chemistry of Solids
    Volume64
    Issue number12
    DOIs
    Publication statusPublished - Dec 2003

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