Comments on the paper on the double doped BiFeO3 crystal by Nitin Kumar et al., and published in J. Alloy. Compd. 688, (2016) 858

Comments on the paper on the double doped BiFeO3 crystal by Nitin Kumar et al., and published in J. Alloy. Compd. 688, (2016) 858

My comments concern the significant error in the crystallographic part of the commented paper. It was discovered that the studied crystals are of sillenite type and the correct formula should be Bi25FeO39:Ni,Ti instead of BiFeO3. Moreover, the type of unit cell is not correct. Due to the doping the...

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Bibliographic Details
Published in:Journal of alloys and compounds Vol. 895; p. 162466
Main Author: Tomaszewski, Paweł E.
Format: Journal Article
Language:English
Published: Lausanne Elsevier B.V 25-02-2022
Elsevier BV
Subjects:
Bismuth ferrite
Chemical composition
Crystallography
Crystals
Errors
Lattice parameters
Sillenite
Unit cell
X-ray diffraction
X-ray diffraction
Sillenite
Errors
Bismuth ferrite
Lattice parameters
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Summary:My comments concern the significant error in the crystallographic part of the commented paper. It was discovered that the studied crystals are of sillenite type and the correct formula should be Bi25FeO39:Ni,Ti instead of BiFeO3. Moreover, the type of unit cell is not correct. Due to the doping the new type of unit cell, previously unknown, was proposed for such crystals. It was found that the studied sample contains two slightly different phases of the sillenite type. The actual chemical composition of the studied crystals is not known.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2021.162466