1. Institute of Physics, Ministry of Science and Education, Baku Az1143, Azerbaijan
2. Institute of Physical Problems, Baku State University, Ministry of Science and Education, Baku Az1148, Azerbaijan
3. National Research Council, Institute of Nanotechnology (NANOTEC), University c/o Campus Ecotekne, Via per Monteroni, 73100 Lecce, Italy
4. Department of Mathematics and Physics ‘‘Ennio De Giorgi”, University of Salento, c/o Campus Ecotekne, Via per Monteroni, 73100 Lecce, Italy
5. Helmholtz-Zentrum Berlin for Materials and Energy (HZB), Department of Structure and Dynamics of Energy Materials, 14109 Berlin, Germany
6. Institute of Geological Sciences, Free University of Berlin, 14195 Berlin, Germany