Intermixing of Fe at Cu(1)-chain and Cu(2)-plane sites in FeSr2YCu2O7.30 system: A neutron diffraction and Mössbauer spectroscopic study

V. P.S. Awana*, S. K. Malik, W. B. Yelon, J. Lindén, M. Karppinen, H. Yamauchi

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

7 Citations (Scopus)

Abstract

The presently prepared FeSr2YCu2Oz (Fe-1212) sample crystallizes in a tetragonal structure (space group P4/mmm). Rietveld structural refinement of the room temperature neutron diffraction data reveal that nearly half of the Fe remains at the Cu(1)-chain site while the other half goes to the Cu(2)-plane site in the nominal Cu(1)Sr2YCu(2)2O7 or Cu-1212 structure. In this compound, Cu is distributed over the chain and plane sites appropriately. Oxygen content of the present Fe-1212 sample, as determined from the oxygen occupancies, is 7.30(2) per formula unit. Existence of Fe at the two different lattice sites is also confirmed from the room temperature 57Fe Mössbauer spectrum of the compound.

Original languageEnglish
Pages (from-to)62-64
Number of pages3
JournalPhysica B: Condensed Matter
Volume312-313
DOIs
Publication statusPublished - Mar 2002
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Strongly Correlated Electrons - Ann Arbor, MI, United States
Duration: 6 Aug 20026 Aug 2002

Keywords

  • Fe-1212
  • Mössbauer spectroscopy
  • Neutron diffraction

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