The pressure dependence of self-diffusion and spin–lattice relaxation in cold and supercooled H2O and D2O
Abstract
Measurements of the self-diffusion coefficients D and the oxygen-17 and deuterium spin–lattice relaxation times T1 in light and heavy water have been extended into the supercooled region to a maximum pressure of 400 MPa and to a minimum temperature of 240 K and partly to even lower temperatures. With these measurements the maxima of the T1 isotherms could be established for the first time. For the deuterium and oxygen-17 T1 of heavy water as well as for the oxygen-17 T1 of light