Department of Physics, School of Basic and Applied Sciences, Central University of Tamilnadu(CUTN), Thiruvarur 610101, India;
The Abdus Salam International Center for Theoretical Physics, Trieste, Italy;
Department of Physics, Periyar University, Salem 636011, India;
Institut za nuklearne nauke Vinca, Laboratorija za atomsku fiziku 040, Univerzitet u Beogradu, Postanski fah 522, 11001 Beograd, Serbia;
Fakultet tehnickih nauka, Univerzitet u Novom Sadu, 21000 Novi Sad, Serbia;
Institute of Mathematics, Poznan University of Technology, Piotrowo 3A, 60-965, Poznan, Poland;
Department of Physics, Periyar University, Salem 636011, India;
Center for Nanoscience and Nanotechnology, Periyar University, Salem 636011, India;
Department of Chemistry, Periyar University, Salem 636011, India;
