1. Doctoral School on Materials Sciences and Technologies, Óbuda University, Bécsi út 96/b, H-1034 Budapest, Hungary
2. Wigner Research Centre for Physics, Institute for Solid State Physics and Optics, P.O. Box 49, H-1525 Budapest, Hungary
3. Department of Atomic Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rakpart 3, H-1111 Budapest, Hungary
4. Institute of Technical Physics and Materials Science, Centre for Energy Research, P.O. Box 49, H-1525 Budapest, Hungary
5. Department of Inorganic Chemistry, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1, H-1117 Budapest, Hungary
6. Stavropoulos Center for Complex Quantum Matter, Department of Physics, University of Notre Dame, South Bend, IN 46556, USA