Preparation and investigation of the physical properties of fluorinated Nd2-xSrxNiO4+δ

B. W. Arbuckle, K. V. Ramanujachary, A. M. Buckley, M. Greenblatt

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Selected members of the Nd2-xSrxNiO4+δ solid solution series were fluorinated by a low temperature ion-exchange reaction. Nd2NiO4.16 is orthorhombic at ambient temperature and shows an increase in the orthorhombic distortion as a result of fluorination. The a unit cell parameter of Nd2NiO4.16-xFy decreases while the b and c cell parameters increase relative to the oxygen rich sample Nd2NiO4.16. The unit cell volume of the fluorinated sample relative to the oxygen rich sample increases. Nd2NiO4.16 undergoes a structural phase transition at 575°C, and the fluorinated analogue shows no evidence of a structural phase transition up to 700°C. The Nd2NiO4.16-xFy phase decomposes at 700°C into Nd2NiO4+δ, NdOF, NdF3, and NiO as determined by differential thermal analysis and X-ray diffraction analysis. The significant changes in the electrical and magnetic properties of fluorinated Nd2-xSrxNiO4+δ compared to the oxide are discussed in terms of structural properties of the NiO basal planes.

Original languageEnglish (US)
Pages (from-to)274-282
Number of pages9
JournalJournal of Solid State Chemistry
Volume97
Issue number2
DOIs
StatePublished - Apr 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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