Comment on “Investigation of the structural, surface topographical, fractal, capacitive, and electrical properties of a defect brownmillerite perovskite material KBiFeMnO 5 for electronic devices” by D. Panda, S. S. Hota and R. N. P. Choudhary, RSC Adv. , 2024, 14 , 3400

The sample studied in the commented paper is Bi 25 FeO 40 or Bi 24 Mn 2 O 40 instead of KBiFeMoO 5 .