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Mössbauer study of the intercalation compound Fex(H2O)TaS2

  • Superconductors
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Abstract

We report here on the X-ray, dilatometric and Mössbauer studies on the superconducting compound Fex(H2O)yTaS2. The Mössbauer spectra in the fully hydrated form show a quadrupole doublet with hyperfine parameters similar to those found in hydrated ferrous salts with iron in an octahedral symmetry. The unequal intensities of the components of the quadrupole doublet point to a preferred orientation of EFG axis with respect to the γ-ray. The asymmetry can be interpreted as a tilting of the 4-fold octahedral axis with respect to crystalc axis. Removal of water is achieved by dynamic pumping leading to a nearly dehydrated sample.

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Aggarwal, K., Litterst, F.J., Kalvius, G.M. et al. Mössbauer study of the intercalation compound Fex(H2O)TaS2 . Hyperfine Interact 55, 1171–1175 (1990). https://doi.org/10.1007/BF02397144

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  • DOI: https://doi.org/10.1007/BF02397144

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