Mathias Schumacher

TL;DR: It is shown how this materials map can be extended in the third dimension by including physical properties of application interest and how the map coordinates yield new insight into the nature of the Peierls distortion in phase-change materials and thermoelectrics.

TL;DR: A liquid–liquid phase transition in the phase-change materials Ag4In3Sb67Te26 and Ge15Sb85 at 660 and 610 kelvin, respectively is found, revealing a relationship between atomic structure and kinetics, enabling a systematic optimization of the memory-switching kinetics.

TL;DR: The experiments reveal that this bonding mechanism prevails in four sesqui-chalcogenides, characterized by rather short interlayer distances at the van der Waals like gaps, suggestive of significant interlayer coupling.

TL;DR: The insights gained from this study highlight the technological relevance of the concept of metavalent bonding and its potential for materials design.

TL;DR: This work investigates the structural, electronic and kinetic properties of liquid Ge2Sb2Te5 as a function of temperature by a combined experimental and computational approach and extracts the kinetic coefficients from the molecular dynamics trajectories and determines the activation energy for viscosity.