Affiliation: | 1.PG & Research Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, 604407, Tamilnadu, India ;2.Thiruvalluvar University, Serkadu, Vellore, 632115, Tamilnadu, India ;3.Department of Physics, St. Joseph’s Institute of Technology, OMR, Chennai, 600119, Tamilnadu, India ;4.Division of Physics, School of Advanced Sciences, Vellore Institute of Technology, Chennai, 600 127, Tamilnadu, India ; |