The complex, nonlinear flow behavior of soft materials transcends industrial applications, smart material design and non-equilibrium thermodynamics. A long-standing, fundamental challenge in soft-matter science is establishing a quantitative connection between the deformation field, local microstructure and macroscopic dynamic flow properties i.e., the rheology. Here, a new experimental method is developed using simultaneous small angle neutron

Read More

In what may be the first use of neutron scattering to study complex bio-medical systems under dynamic conditions, Los Alamos researchers and collaborators mimicked blood flow by engineering a layer of human endothelial cells (the cells that cover the inner surface of blood vessels) and subjecting them to shear stress. Simultaneously, the team used neutrons

Read More

A combination of neutron scattering and microscopy is used to reveal that a spontaneously forming nanostructure is gives rise to the extremely low glass-like thermal conductivity of AgSbTe2. AgSbTe2 has long been known to have an extremely low thermal conductivity, even in crystalline form, which enables high-performance thermoelectric modules that can be used for recovery of

Read More