Page 5 - Microstructure Physics News Today : Breaking News, Live Updates & Top Stories | Vimarsana

 E-Mail IMAGE: X-ray diffraction intensities recorded in the vicinity of the (620,000) main reflection of the charge-density-wave (CDW) phase of the topological Weyl semimetal (TaSe4)2I. Small (red) indices label satellite reflections. The... view more  Credit: MPI of Microstructure Physics Topological materials are characterised by unique electronic and physical properties that are determined by the underlying topology of their electronic systems. Scientists from the Max Planck Institutes for Microstructure Physics (Halle) and for Chemical Physics of Solids (Dresden) have now disco...

Expanding the Scope of Electronic-Structure Theory December 16, 2020• R. Godby/University of York Figure 1: The diffraction patterns on the right are the Fourier transforms of the crystal structures on the left. (Top) A normal periodic solid. (Bottom) A spatially modulated version of the solid: each diffraction peak on the right becomes decorated with a small number of “satellite” peaks that reflect the nature of the spatial modulation. The new method effectively harnesses this concept of satellite peaks to give an efficient way of calculating and storing the electron wave functi...