1. Department of Materials Science and Technology, University of Crete, GR-70013 Voutes Campus, Greece
2. Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, (FORTH), Nikolaou Plastira 100, Vassilika Vouton, GR-71110 Heraklion, Crete, Greece
3. Institute of Applied and Computational Mathematics (IACM), Foundation for Research and Technology Hellas, (FORTH), IACM/FORTH, GR-71110 Heraklion, Crete, Greece
4. Department of Mathematics and Applied Mathematics, University of Crete, GR-71409 Heraklion, Crete, Greece
5. Computation-based Science and Technology Research Center, The Cyprus Institute, Nicosia 2121, Cyprus
6. National Hellenic Research Foundation, Theoretical & Physical Chemistry Institute, 48 Vassileos Constantinou Avenue, GR-11635 Athens, Greece