1. Department of Condensed Matter Physics & Material Science
2. S. N. Bose National Centre for Basic Sciences
3. Kolkata-700106
4. India
5. Indian Institute of Science Education and Research Bhopal
6. Otto-Schott-Institut für Materialforschung (OSIM)
7. Friedrich-Schiller-Universität Jena
8. 07743 Jena
9. Germany