1. Department of Theoretical Physics
2. Budapest University of Technology and Economics
3. H-1111 Budapest
4. Hungary
5. Institute of Experimental Physics
6. Otto von Guericke University
7. D-39106 Magdeburg
8. Germany
9. Institute for Solid State Physics and Optics
10. Wigner Research Centre for Physics
11. Hungarian Academy of Sciences
12. H-1525 Budapest
13. MTA-BME Morphodynamics Research Group