ABSTRACT

My comments concern the severe errors in the crystallographic part of the commented paper. The correct formula is proposed to be Bi_1–xY_xFeO₃ (‘Bi_0.85Y_0.15FeO₃’) instead of BiFe_0.85Y_0.15O₃. It is found that the studied sample is bi-phasic with nearly equal amounts of BiFeO₃:Y and Bi₂₅FeO₃₉:Y. The actual composition of the studied crystals is not known. Moreover, the type of unit cell is not correct.

中文翻译：

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对 L. Thansanga 等人发表于 'Phase Transitions' 94, 47 (2021) 的论文“Bi(Fe0.85Y0.15)O3 陶瓷的结构、介电和电气特性研究”的评论

摘要

我的评论涉及评论论文中晶体学部分的严重错误。建议正确的公式为 Bi _{1– x} Y _x FeO ₃ ('Bi _0.85 Y _0.15 FeO ₃ ') 而不是 BiFe _0.85 Y _0.15 O ₃。发现所研究的样品是双相的，具有几乎等量的 BiFeO ₃ :Y 和 Bi ₂₅ FeO ₃₉ :Y。所研究晶体的实际组成尚不清楚。此外，单元格的类型不正确。