Synthesis and structural investigations on the new Sr1.32Mn 0.83Cu0.17O3 compound

Artem M. Abakumov, Andrey V. Mironov, Vitaliy A. Govorov, Maxim V. Lobanov, Marina G. Rozova, Evgeny V. Antipov, Oleg I. Lebedev, Gustaaf Van Tendeloo

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The Sr1.32Mn0.83Cu0.17O3 compound has been prepared by solid state reaction in an evacuated sealed silica tube at 1000 °C. The crystal structure of Sr1.32Mn 0.83Cu0.17O3 was studied by means of electron diffraction, high resolution electron microscopy and was refined from X-ray powder diffraction data (RI = 0.042, RP = 0.016). The compound belongs to the A3m+3nA′nB 3m+nO9m+6n family of hexagonal perovskites. Its incommensurate composite structure (a = 9.5964(1) Å, c = 2.6001(1) Å, q = 0.66159(3)c*, superspace group R3m(00γ)0s) consists of the modulated [(Mn,Cu)O3] and [Sr] subsystems. The repeat period along the [(Mn,Cu)O 3] chains of the BO6 octahedra and the A′O6 trigonal prisms is equal to 99 polyhedra and can be represented as a sequence of 1 × (3 oct + 1 prism) and 9 × (2 oct + 1 prism) or 10 × (2 oct + 1 prism). Mn is located at the octahedral sites, whereas the trigonal prismatic sites are randomly occupied by Mn and Cu.

Original languageEnglish
Pages (from-to)1117-1125
Number of pages9
JournalSolid State Sciences
Volume5
Issue number8
DOIs
Publication statusPublished - 1 Aug 2003
Externally publishedYes

Keywords

  • Crystal structure
  • Electron microscopy
  • Preparation
  • SrMnCuO

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