Diffusivity determination in bulk materials on nanometric length scales using neutron reflectometry

Probing Interfaces in Metals Using Neutron Reflectometry

Solid-state interfaces play a major role in a variety of material properties. They are especially important in determining the behavior of nano-structured materials, such as metallic multilayers. However, interface structure and properties remain poorly understood, in part because the experimental toolbox for characterizing them is limited. Neutron reflectometry (NR) offers unique opportunities...

Neutron reflectometry yields distance-dependent structures of nanometric polymer brushes interacting across water.

The interaction between surfaces displaying end-grafted hydrophilic polymer brushes plays important roles in biology and in many wet-technological applications. In this context, the conformation of the brushes upon their mutual approach is crucial, because it affects interaction forces and the brushes' shear-tribological properties. While this aspect has been addressed by theory, experimental d...

Small-angle neutron scattering correlation functions of bulk magnetic materials

On the basis of the continuum theory of micromagnetics, the correlation function of the spin-misalignment small-angle neutron scattering cross section of bulk ferromagnets (e.g. elemental polycrystalline ferromagnets, soft and hard magnetic nanocomposites, nanoporous ferromagnets, or magnetic steels) is computed. For such materials, the spin disorder which is related to spatial variations in th...

Localization Length Scales of Triplet Excitons in Singlet Fission Materials

Retrieval of phase information in neutron reflectometry.