Comments to paper by D. Panda et al. on KBiMn2O5

Abstract

The ‘novel’ complex material KBiMn₂O₅ described in the paper “Structural, morphological, dielectric, and electrical characteristics of a brownmillerite material for electronic devices: KBiMn₂O₅” written by Debasish Panda, Sudhansu Sekhar Hota & R. N. P. Choudhary (Chemical Physics Impact 8 (2024) 100540), does not exist at all. The studied sample was mainly the sillenite Bi₂₄Mn₂O₄₀ instead of brownmillerite KBiMn₂O₅. The comments present the erroneous approach to the processing of diffraction data. Thus, the data from subsequent experiments are without scientific value as measured on a mixture of at least two phases.