Physics – Condensed Matter – Materials Science
Scientific paper
2011-02-02
High Pressure Research, 28 [4] 515-519 (2008)
Physics
Condensed Matter
Materials Science
8 pages, 1 figure, 1 table
Scientific paper
10.1080/08957950802379307
Series of metastable Me1-xZnxO solid solutions (Me = Ni2+, Co2+, Fe2+, Mn2+) with the rocksalt (rs) crystal structure have been synthesized from the binary oxides by quenching from 7.7 GPa and 1450-1650 K. Phase composition of the samples, as well as structural properties and stoichiometry of synthesized solid solutions have been studied by X-ray powder diffraction, both conventional and with synchrotron radiation. The widest (0.3 \leq x \leq 0.8) composition range of the existence of individual rock-salt solid solution has been established for the NiO-ZnO system. The bulk rs-Co1-xZnxO, rs-Fe1-xZnxO and rs-Mn1-xZnxO solid solutions may be quenched down to ambient conditions only with twice lower ZnO content, i.e. x \leq 0.5, 0.5 and 0.4, respectively; while formation of rock-salt solid solutions in the CdO-ZnO system has not been observed in the whole concentration range.
Baranov A. N.
Kurakevych Oleksandr O.
Sokolov P. S.
Solozhenko Vladimir L.
Tafeenko V. A.
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