151Eu Mössbauer study of the CuEuO2+δ delafossite

J. Lindén*, K. Isawa, J. Miettinen, M. Karppinen, H. Yamauchi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Eu-based delafossite samples CuEuO2+δ, with δ = 0.00 and 0.67 were synthesized for 151Eu Mössbauer investigations. The value of the quadrupole coupling constant for the as-synthesized stoichiometric (δ = 0.00) and the oxygen-loaded (δ = 0.67) samples was eQgVzz = 9.4(2) and 6.1(2) mm/s, respectively. The asymmetry parameter η was 0.44(4) and 0.76(4), respectively. Lattice point-charge calculations reproduced the positive eQgVzz values and the increase of the asymmetry parameter η upon oxygen loading.

Original languageEnglish
Pages (from-to)223-229
Number of pages7
JournalPhysica B: Condensed Matter
Volume271
Issue number1-4
DOIs
Publication statusPublished - Nov 1999
MoE publication typeA1 Journal article-refereed

Keywords

  • Delafossite
  • Hyperfine interaction
  • Mössbauer spectroscopy

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