57Fe and 151Eu Mössbauer studies of magnetoresistive Europium based cobalt perovskites

Z. Németh, E. Kuzmann, A. Vértes, Z. Homonnay, Z. Klencsár, J. M. Grenèche, J. Hakl, K. Vad, S. Mészáros, B. Lackner, K. Kellner, G. Gritzner

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Eu0.8Sr0.2FexCo1-xO 3-z CMR perovskites with different iron concentrations (x=0, 0.025, 0.075, 0.15, 0.3) were investigated by X-ray diffraction, AC magnetic susceptibility, magnetotransport, as well as 57Fe and 151Eu Mössbauer spectrometry. The valence state of europium ions was found to be trivalent, independently of the iron concentration. 57Fe Mössbauer spectra and magnetic susceptibility of the investigated perovskites presented complementary results for the magnetic transitions.

Original languageEnglish
Pages (from-to)1241-1246
Number of pages6
JournalHyperfine Interactions
Volume169
Issue number1-3
DOIs
Publication statusPublished - Apr 1 2006

Keywords

  • Doped transition metal compounds
  • Magnetoresistance
  • Mössbauer spectrometry
  • Perovskite

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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