1. Department of Physics S.K.E. S's Govindram Seksaria Science College Belagavi 590006 India
2. Department of Engineering Physics K.L.E Institute of Technology Hubballi Karnataka 580027 India
3. Nano‐Composites and Materials Research Lab Department of Physics Siddaganga Institute of Technology Tumakuru Karnataka 572103 India
4. Department of Physics Jain P.U.College Davanagere Karnataka India