@article{7d1abc1043cf41ce96e567c7d3aba5e7,
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",
language = "אנגלית",
volume = "29",
pages = "764--779",
journal = "High Pressure Research",
issn = "0895-7959",
publisher = "Taylor and Francis Ltd.",
number = "4",
}