Atomistic defects and voids often determine the mechanical, electrical or optical properties of materials. Positron lifetime spectroscopy offers the unique potential to analyze and characterize vacancy type atomic defects, defect clusters and nanoholes in nearly any kind of material. Our institute has developed instruments that use pulsed, low energy positron beams to obtain best resolution...
The aim of our research is to achieve a fundamental understanding of compressible soft materials, both static and under flow, and use this knowledge to further develop bio-relevant colloids. An object's bulk modulus K quantifies its resistance to an isotropic compression. For deformable colloids, K must be known to predict their response to crowding. Here, we will first present a new approach...
