1. Institute
of Condensed Matter and Nanosciences, Molecules, Solids and Reactivity, Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
2. Department of Electrical Engineering and Computer Science & MANSiD Research Center, “Stefan cel Mare” University, University Street, 13, Suceava 720229 Romania
3. Advanced
Materials Research Institute, Department of Physics, University of New Orleans (UNO), New Orleans, Louisiana 70148 United States
4. Lumilab
Department Solid State Sciences, Ghent University, Krijgslaan 281, S1, B-9000 Gent, Belgium