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 language | English |
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Pages (from-to) | 2517-2523 |
Number of pages | 7 |
Journal | Journal of Physics and Chemistry of Solids |
Volume | 64 |
Issue number | 12 |
DOIs | |
Publication status | Published - Dec 2003 |