Rotational motion of the water molecules in the superconductor Na0.28CoO2·yH2O N. Jalarvo, N. Aliouane, H. N. Bordallo, C. J. Milne, J. R. Veira and D. N. Argyriou Eur. Phys. J. Special Topics, 141 (2007) 69-72 Published online: 29 March 2007 DOI: 10.1140/epjst/e2007-00020-4