1. Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland, Institute of Applied Physics, Academy of Sciences of Moldova, Academy str. 5, MD-2028 Chisinau, Moldova, Department of Chemistry, Centre for Synthesis and Chemical Biology, Convay Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland, and Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Darmstadt University of Technology, Petersenstrasse 20, 64287 Darmstadt,...