On the compressibility of ferrite spinels: A high-pressure X-ray diffraction study of MFe2O4 (M=Mg, Co, Zn)

E. Greenberg; G. Kh Rozenberg; W. Xu; R. Arielly; M. P. Pasternak; A. Melchior; G. Garbarino; L. S. Dubrovinsky

doi:10.1080/08957950903424424

On the compressibility of ferrite spinels: A high-pressure X-ray diffraction study of MFe₂O₄ (M=Mg, Co, Zn)

E. Greenberg^*, G. Kh Rozenberg, W. Xu, R. Arielly, M. P. Pasternak, A. Melchior, G. Garbarino, L. S. Dubrovinsky

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

High-pressure synchrotron X-ray diffraction studies were carried out on a series of ferrite spinels MFe₂O₄ (M=Mg, Co, Zn) up to ̃70GPa using diamond anvil cells. He and Ne, used as pressure media, provided quasi-hydrostatic conditions, resulting in a high-quality fit to both second- and third-order equations of state (EOSs). A quality fit to the second-order EOS allows a comparison between the compressibility of these spinels and that of other spinels found in the literature. Fitting to the second-order Birch-Murnaghan EOS results in the values of K₀=170.5(8) , 176.1(6) and 174(2)GPa for M=Mg, Co and Zn, respectively. A linear dependence of K₀ is obtained as a function of the normalized average cationic-sphere volume ^SN of each spinel with a slope of 490(15)GPa/Å³. A number of previous studies of the same and similar spinels exhibit a strong deviation from K₀(S_N), which can be attributed to a lack of hydrostatic conditions.

Original language	English
Pages (from-to)	764-779
Number of pages	16
Journal	High Pressure Research
Volume	29
Issue number	4
DOIs	https://doi.org/10.1080/08957950903424424
State	Published - Dec 2009

Keywords

Compressibility
Diamond anvil cell
Ferrite spinels
High pressure
Pressure media
X-ray diffraction

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10.1080/08957950903424424

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title = "On the compressibility of ferrite spinels: A high-pressure X-ray diffraction study of MFe2O4 (M=Mg, Co, Zn)",

abstract = "High-pressure synchrotron X-ray diffraction studies were carried out on a series of ferrite spinels MFe2O4 (M=Mg, Co, Zn) up to{\~ }70GPa using diamond anvil cells. He and Ne, used as pressure media, provided quasi-hydrostatic conditions, resulting in a high-quality fit to both second- and third-order equations of state (EOSs). A quality fit to the second-order EOS allows a comparison between the compressibility of these spinels and that of other spinels found in the literature. Fitting to the second-order Birch-Murnaghan EOS results in the values of K0=170.5(8) , 176.1(6) and 174(2)GPa for M=Mg, Co and Zn, respectively. A linear dependence of K0 is obtained as a function of the normalized average cationic-sphere volume SN of each spinel with a slope of 490(15)GPa/{\AA}3. A number of previous studies of the same and similar spinels exhibit a strong deviation from K0(SN), which can be attributed to a lack of hydrostatic conditions.",

keywords = "Compressibility, Diamond anvil cell, Ferrite spinels, High pressure, Pressure media, X-ray diffraction",

author = "E. Greenberg and Rozenberg, {G. Kh} and W. Xu and R. Arielly and Pasternak, {M. P.} and A. Melchior and G. Garbarino and Dubrovinsky, {L. S.}",

note = "Funding Information: This research was supported in part by the Israeli Science Foundation Grant #36/05, the Marie Curie Action for Early Stage Training of Researchers within the 6th Framework Programme (Contract No. MEST-CT-2005-019700) and the DFG. A part of the experiments were performed at the Bayerisches Geoinstitut under the EU {\textquoteleft}Research Infrastructures: TransnationalAccess{\textquoteright}Program (Contract No. 505320 (RITA) – HP).We acknowledge the European Synchrotron Radiation Facility for the provision of synchrotron radiation facilities and we thank M. Hanfland for assisting with the preparation of the DACs for XRD measurements.",

year = "2009",

month = dec,

doi = "10.1080/08957950903424424",

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T2 - A high-pressure X-ray diffraction study of MFe2O4 (M=Mg, Co, Zn)

AU - Greenberg, E.

AU - Rozenberg, G. Kh

AU - Xu, W.

AU - Arielly, R.

AU - Pasternak, M. P.

AU - Melchior, A.

AU - Garbarino, G.

AU - Dubrovinsky, L. S.

N1 - Funding Information: This research was supported in part by the Israeli Science Foundation Grant #36/05, the Marie Curie Action for Early Stage Training of Researchers within the 6th Framework Programme (Contract No. MEST-CT-2005-019700) and the DFG. A part of the experiments were performed at the Bayerisches Geoinstitut under the EU ‘Research Infrastructures: TransnationalAccess’Program (Contract No. 505320 (RITA) – HP).We acknowledge the European Synchrotron Radiation Facility for the provision of synchrotron radiation facilities and we thank M. Hanfland for assisting with the preparation of the DACs for XRD measurements.

PY - 2009/12

Y1 - 2009/12

N2 - High-pressure synchrotron X-ray diffraction studies were carried out on a series of ferrite spinels MFe2O4 (M=Mg, Co, Zn) up to ̃70GPa using diamond anvil cells. He and Ne, used as pressure media, provided quasi-hydrostatic conditions, resulting in a high-quality fit to both second- and third-order equations of state (EOSs). A quality fit to the second-order EOS allows a comparison between the compressibility of these spinels and that of other spinels found in the literature. Fitting to the second-order Birch-Murnaghan EOS results in the values of K0=170.5(8) , 176.1(6) and 174(2)GPa for M=Mg, Co and Zn, respectively. A linear dependence of K0 is obtained as a function of the normalized average cationic-sphere volume SN of each spinel with a slope of 490(15)GPa/Å3. A number of previous studies of the same and similar spinels exhibit a strong deviation from K0(SN), which can be attributed to a lack of hydrostatic conditions.

AB - High-pressure synchrotron X-ray diffraction studies were carried out on a series of ferrite spinels MFe2O4 (M=Mg, Co, Zn) up to ̃70GPa using diamond anvil cells. He and Ne, used as pressure media, provided quasi-hydrostatic conditions, resulting in a high-quality fit to both second- and third-order equations of state (EOSs). A quality fit to the second-order EOS allows a comparison between the compressibility of these spinels and that of other spinels found in the literature. Fitting to the second-order Birch-Murnaghan EOS results in the values of K0=170.5(8) , 176.1(6) and 174(2)GPa for M=Mg, Co and Zn, respectively. A linear dependence of K0 is obtained as a function of the normalized average cationic-sphere volume SN of each spinel with a slope of 490(15)GPa/Å3. A number of previous studies of the same and similar spinels exhibit a strong deviation from K0(SN), which can be attributed to a lack of hydrostatic conditions.

KW - Compressibility

KW - Diamond anvil cell

KW - Ferrite spinels

KW - High pressure

KW - Pressure media

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ER -

On the compressibility of ferrite spinels: A high-pressure X-ray diffraction study of MFe₂O₄ (M=Mg, Co, Zn)

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