We report on ab initio calculations of the optical properties of the lead chalcogenides PbS, PbSe, and PbTe performed with a relativistic full-potential linear muffin-tin orbital method within the local density approximation. Our calculated spectra are in excellent agreement with recent ellipsometry measurements. The origin of the peaks in the spectra is discussed, as well as the effects of inc...

Paul Z. Hanakata,1,* A. S. Rodin,2 Alexandra Carvalho,2 Harold S. Park,3 David K. Campbell,1,† and A. H. Castro Neto2 1Department of Physics, Boston University, Boston, Massachusetts 02215, USA 2Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore 3Department of Mechanical Engineering, Boston University, Boston, Ma...

Metal chalcogenides are ubiquitous starting materials for the extraction of metals from both primary and secondary sources. In this study, it is shown that chalcogenide compounds electrochemically active can be solubilized solid powders by electrochemical oxidation in a deep eutectic solvent. Importantly, metal ions released into solution were unaffected type present initial compound, maintaini...

Topological properties of iron chalcogenides provide a way to distinguish the ways in which their electrons form superconducting pairs, offering possible path classifying topological superconductors.