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

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

doi:10.1016/j.jpcs.2003.08.005

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 journal › Article › peer-review

286 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 language	English
Pages (from-to)	2517-2523
Number of pages	7
Journal	Journal of Physics and Chemistry of Solids
Volume	64
Issue number	12
DOIs	https://doi.org/10.1016/j.jpcs.2003.08.005
Publication status	Published - Dec 2003

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title = "High pressure Raman spectroscopy of spinel-type ferrite ZnFe 2O4",

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.",

keywords = "C. High-pressure, C. Raman Spectroscopy, D. Phase transitions",

author = "Zhongwu Wang and David Schiferl and Yusheng Zhao and O'Neill, \{H. St C.\}",

year = "2003",

month = dec,

doi = "10.1016/j.jpcs.2003.08.005",

language = "English",

volume = "64",

pages = "2517--2523",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - High pressure Raman spectroscopy of spinel-type ferrite ZnFe 2O4

AU - Wang, Zhongwu

AU - Schiferl, David

AU - Zhao, Yusheng

AU - O'Neill, H. St C.

PY - 2003/12

Y1 - 2003/12

N2 - 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.

AB - 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.

KW - C. High-pressure

KW - C. Raman Spectroscopy

KW - D. Phase transitions

UR - https://www.scopus.com/pages/publications/0142247238

U2 - 10.1016/j.jpcs.2003.08.005

DO - 10.1016/j.jpcs.2003.08.005

M3 - Article

SN - 0022-3697

VL - 64

SP - 2517

EP - 2523

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 12

ER -

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

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