Electron Relaxation in Eu3-xGdxS4 by Mössbauer Spectroscopy

  • W. Bedorf
  • M. Rosenberg


A Mössbauer study between 80 and 470 K of solid solutions of Eu3-xGdxS4 with x = 0; 0,3; 0,7; 1,0; 1,7; 2 and Th3P4 structure has been undertaken. As previously reported by Berkooz et al. 1 in the case of Eu3S4, the Mössbauer spectra provide strong evidence for thermally activated electronic relaxation. The low temperature spectra for the compositions with x > 2 show two well resolved absorption peaks with isomer shifts IS of -11,5 and +0,5 mm/s characteristic for the Eu2+, respectively Eu3+ valency states with nearly the expected intensity ratio.


MOSSBAUER Spectroscopy Isomer Shift Electron Relaxation Mossbauer Spectrum Physica Status Solidus 
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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • W. Bedorf
    • 2
  • M. Rosenberg
    • 1
  1. 1.Institut für Experimentalphysik VIRuhr-UniversitätBochumBR Deutschland
  2. 2.Hoesch-Werke AG (ZDH)DortmundDeutschland

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