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Rotational motion of the water molecules in the superconductor Na0.28CoO\(_{\mathsf{2}} \!\cdot \!{\sf y}\)H2O

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Abstract.

Quasielastic neutron scattering (QENS) has been used to investigate the dynamical behaviour of H2O in the superconductor Na0.28CoO2 .yH2O. The measurements were obtained at room temperature for a molar concentration of water, y = 1.3. From the analysis of the Q-dependence of the EISF and the line-width we found that the water dynamics can be well described by rotational motion that likely correspond to re-orientation of the H2O molecule. We were also able to define a rotational correlation time of τ= 1.85 ps.

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Authors and Affiliations

  1. Hahn-Meitner-Institut, Glienicker Strae 100, Berlin, Germany

    N. Jalarvo, N. Aliouane, H. N. Bordallo, C. J. Milne, J. R. Veira & D. N. Argyriou

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  1. N. Jalarvo
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  2. N. Aliouane
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  3. H. N. Bordallo
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  4. C. J. Milne
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  5. J. R. Veira
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  6. D. N. Argyriou
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Jalarvo, N., Aliouane, N., Bordallo, H. et al. Rotational motion of the water molecules in the superconductor Na0.28CoO\(_{\mathsf{2}} \!\cdot \!{\sf y}\)H2O. Eur. Phys. J. Spec. Top. 141, 69–72 (2007). https://doi.org/10.1140/epjst/e2007-00020-4

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  • DOI: https://doi.org/10.1140/epjst/e2007-00020-4

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