CRYSTAL STRUCTURE AND VIBRATIONAL PROPERTIES OF Ca3 Co2−x Fex O6 (x = 0.4-1.0)

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Khan D., Nghiem N., Tien D., Kichanov S., Hoang T., Rutkauskas A., ...More

Advanced Physical Research, vol.7, no.1, pp.48-56, 2025 (Scopus)

  • Publication Type: Article / Article
  • Volume: 7 Issue: 1
  • Publication Date: 2025
  • Doi Number: 10.62476/apr.7148
  • Journal Name: Advanced Physical Research
  • Journal Indexes: Scopus
  • Page Numbers: pp.48-56
  • Keywords: Ca3Co2O6, Raman spectroscopy, X-ray diffraction
  • Open Archive Collection: Digital Heritage Collection
  • Azerbaijan State University of Economics (UNEC) Affiliated: No

Abstract

The crystal structure and vibrational properties of iron-doped cobaltites Ca3Co2−xFexO6 at an iron concentration range x = 0.4-1.0 were studied by X-ray diffraction and Raman spectroscopy. The evolution of lattice parameters, bond lengths and angles with respect to the iron concentration was studied. Structural data indicate that iron occupies predominantly prismatic structural units. At the same time, Raman spectroscopy data indicate the possible penetration of small amount of iron into octahedral positions at concentrations above 0.7.