Mössbauer study of synthetic jarosites

K. Kovács, E. Kuzmann, Z. Homonnay, A. Vértes, L. Gunneriusson, A. Sandström

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

57Fe Mössbauer spectroscopy and PXRD were used to study artificially prepared jarosites with the compositions of KFe3(SO 4)2(OH)6∈-∈x F x x∈=∈0∈-∈1.6 PXRD measurements revealed single phase jarosite samples. All Mössbauer spectra taken at room temperature exhibit a quadrupole doublet corresponding to mineral jarosite. However, at low temperature where the mineral jarosite has a well resolved sextet, the synthetic jarosite even with x∈=∈0 F∈-∈ content shows a relaxation transition. The spectra indicate that with increasing F ∈-∈ concentration, the paramagnetic-antiferromagnetic transition temperature is decreasing. The results can be used in the analysis of artificial jarosites or those formed during biomineralization processes.

Original languageEnglish
Pages (from-to)69-73
Number of pages5
JournalHyperfine Interactions
Volume186
Issue number1-3
DOIs
Publication statusPublished - Sep 2008

Fingerprint

minerals
quadrupoles
transition temperature
Minerals
room temperature
spectroscopy
Biomineralization
jarosite
Spectroscopy
Temperature
Chemical analysis

Keywords

  • Biomineralization
  • Fluoride incorporation
  • Jarosite
  • Mössbauer spectroscopy
  • PXRD

ASJC Scopus subject areas

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

Cite this

Mössbauer study of synthetic jarosites. / Kovács, K.; Kuzmann, E.; Homonnay, Z.; Vértes, A.; Gunneriusson, L.; Sandström, A.

In: Hyperfine Interactions, Vol. 186, No. 1-3, 09.2008, p. 69-73.

Research output: Contribution to journalArticle

Kovács, K. ; Kuzmann, E. ; Homonnay, Z. ; Vértes, A. ; Gunneriusson, L. ; Sandström, A. / Mössbauer study of synthetic jarosites. In: Hyperfine Interactions. 2008 ; Vol. 186, No. 1-3. pp. 69-73.
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