Observation of two O-H covalent bonds of water in the Na0.3 Co O2·1.3 H2 O superconductor by inelastic neutron spectroscopy

A. I. Kolesnikov, H. X. Yang, Y. G. Shi, J. Q. Li, R. I. Walton, J. C. Li

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The vibrational dynamics of pure H2 O and isotopically substituted HDO water in a Na0.3 Co O2·1.3 H2 O layered compound was studied using neutron spectroscopy. The obtained results showed that water in the ab plane of the hexagonal structure exhibits intermolecular translational vibrations and intramolecular O-H stretching modes similar to those in bulk water, but the vibrations along the z direction are different-the corresponding hydrogen bond between the water molecule and the Co O2 layer is much weaker than between water molecules in the water layer. These data revealed two O-H covalent bonds for water in Na0.3 Co O2·1.3 H2 O superconductor which differ in strength by about 18%. © 2007 The American Physical Society.
    Original languageEnglish
    Article number092302
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume76
    Issue number9
    DOIs
    Publication statusPublished - 26 Sept 2007

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