Abstract
ABSTRACT My comments concern the severe errors in the crystallographic part of the commented paper. The correct formula is proposed to be Bi1–x Y x FeO3 (‘Bi0.85Y0.15FeO3’) instead of BiFe0.85Y0.15O3. 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.
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