Coherent structural relaxation of water from meso- to intermolecular scales measured using neutron spectroscopy with polarization analysis
Arantxa Arbe, Gøran J. Nilsen, J. R. Stewart, F. Álvarez, Victoria García Sakai, Juan Colmenero
Abstract
The authors use neutron scattering polarization analysis to extract the coherent and incoherent dynamic structure factors of heavy water with high resolution and in a wide range of scattering vectors. In the mesoscale, the observed decorrelation of the collective fluctuations hardly depends on the scattering vector, whereas in regions closer to intermolecular scales such independent mode coexists with diffusion.
Topics & Concepts
Neutron scatteringScatteringPolarization (electrochemistry)Intermolecular forceSpectroscopyNeutron spectroscopySmall-angle neutron scatteringPhysicsDecorrelationMolecular physicsMaterials scienceCondensed matter physicsOpticsChemistryMoleculePhysical chemistryQuantum mechanicsAlgorithmComputer scienceQuantum, superfluid, helium dynamicsNMR spectroscopy and applicationsHigh-pressure geophysics and materials