Comments on the paper 'Studies of structural, dielectric and electrical characteristic of Bi(Fe0.85Y0.15)O3 ceramics by L. Thansanga et al., and published in 'Phase Transitions' 94, 47 (2021).

Authors :: Tomaszewski, Paweł E.
Source :: Phase Transitions; November 2021, Vol. 94 Issue 11, p885-888, 4p
Publication Year :: 2021
Abstract: My comments concern the severe errors in the crystallographic part of the commented paper. The correct formula is proposed to be Bi<subscript>1–x</subscript>Y<subscript>x</subscript>FeO<subscript>3</subscript> ('Bi<subscript>0.85</subscript>Y<subscript>0.15</subscript>FeO<subscript>3</subscript>') instead of BiFe<subscript>0.85</subscript>Y<subscript>0.15</subscript>O<subscript>3</subscript>. It is found that the studied sample is bi-phasic with nearly equal amounts of BiFeO<subscript>3</subscript>:Y and Bi<subscript>25</subscript>FeO<subscript>39</subscript>:Y. The actual composition of the studied crystals is not known. Moreover, the type of unit cell is not correct. [ABSTRACT FROM AUTHOR]

Subjects :: PHASE transitions
UNIT cell
DIELECTRICS
CERAMICS
BISMUTH iron oxide

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