Affiliation: | 1. Crystal Growth Laboratory, PG and Research Department of Physics, Government Arts College (Autonomous), Karur, 639005, India;2. PG and Research Department of Physics, Thiruvalluvar Government Arts College, Rasipuram, 637401, India;3. PG and Research Department of Physics, Jairam College of Arts and Science, Karur, 639003, India;4. PG and Research Department of Physics, National College (Autonomous), Tiruchirappalli, 620001, India;5. Department of Physics, Aditanar College of Arts and Science, Tiruchendur, 628216, India |