Evidence of magnetic broadening in Mössbauer spectra of superconducting FeTe0.8S0.2

A. Sklyarova*, G. C. Tewari, J. Lindén, H. Yamauchi, M. Karppinen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Magnetic properties of the FeTe0. 8S0. 2 superconductor were studied by Mössbauer spectroscopy. Low-velocity Mössbauer spectra that were recorded in the temperature range from 5. 7 K up to 300 K show a paramagnetic doublet with a broadening at temperatures below 77 K. The broadening can be explained by the appearance of a distribution of hyperfine magnetic fields due to the magnetic ordering of a part of the sample. The magnetically ordered fraction starts to decrease at temperatures below 20 K indicating a possible competition with the onsetting superconductive state.

Original languageEnglish
Pages (from-to)15-21
Number of pages7
JournalHyperfine Interactions
Volume221
Issue number1-3
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Keywords

  • Fe Mössbauer spectroscopy
  • Chalcogenide superconductivity
  • Magnetic properties

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