Comment on the paper by T. K. Thirumalaisamy, R. Saravanan, S. Saravanakumar “The redistribution of charge density in CaF2:Yb3+”, J. Mater Sci: Mater Electron, v. 26, p. 6683 (2015)

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作者
Pavel P. Fedorov
机构
[1] General Physics Institute RAS,
关键词
Solid Solution; CaF2; Ytterbium; Calcium Fluoride; Crystal Lattice Parameter;
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摘要
Thirumalaisamy et al. (J Mater Sci Mater Electron 26:6683, 2015), erroneously characterized a variable chemical composition of their solid solution as Ca1−xYbxF2, whereas its chemical formula should be Ca1−xYbxF2+x. As a result, Thirumalaisamy et al. calculations do not account for the additional fluoride ions that are necessary to compensate the excessive positive charge of ytterbium cations that replace calcium.
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页码:7722 / 7723
页数:1
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