Search

Your search keyword '"Tomaszewski, Paweł E."' showing total 6 results
Start Over Author "Tomaszewski, Paweł E." Journal applied physics a: materials science & processing
6 results on '"Tomaszewski, Paweł E."'

4. Comments on the paper "Structural, dielectric, thermal and electrical characteristics of lead-free double perovskite: BiHoZnCeO6" by M. Padhy, S.K. Dehury, R.N.P. Choudhary, and P.G.R. Achary, and published in Applied Physics A (2020) 126:655.

Author

Tomaszewski, Paweł E.

Subjects
*LATTICE constants, *PHYSICS, *DIELECTRICS, *PEROVSKITE
Abstract

My comments concern the error in the lattice parameters and chemical composition of BiHoZnCeO6 perovskite published in the commented paper. The most probable composition of the studied sample is CeO2:Bi,Ho,Zn. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

5. Comments on the paper on the properties of Ca-doped BaFe0.5Nb0.5O3 by R. Chakravarty et al., and published in Applied Physics A 128, 647 (2022).

Author

Tomaszewski, Paweł E.

Subjects
*DIFFRACTION patterns, *UNIT cell, *PHYSICS, *CRYSTAL symmetry
Abstract

My comments concern some errors in the crystallographic part of the commented paper. The diffraction patterns are erroneously analysed and the final data on the structure (symmetry and unit cell parameters) are different than those supposed in the paper. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

6. Comments on the paper Study of effect of Gd substitution at the Fe site on structural, dielectric and electrical characteristics of BiFeO3 by L. Thansanga et al. (Appl. Phys. A. 125, 764 (2019)).

Author

Tomaszewski, Paweł E.

Subjects
*DIELECTRICS, *BISMUTH iron oxide, *LATTICE constants, *CRYSTALS, *X-ray diffraction
Abstract

My comments concern the severe errors in the crystallographic part of the commented paper. The correct formula is proposed to be Bi1-xGdxFeO3 instead of BiFe0.95Gd0.05O3. Thus, the actual composition of the studied crystal is not known. Furthermore, it is evident that the sample contains at least three different phases. The subsequent studies do not present the properties of the title compound. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results