Authors
R. Vasanthakumar
Department of Physics, Government Arts College (Autonomous), Karur-639 005,, Tamil Nadu, India
W. Nirmala
Department of Physics, Government Arts College, Tiruchirappalli-620 022,, Tamil Nadu, India
R. Santhakumari
Department of Physics, Government Arts College for Women (Autonomous), Pudukkottai-622 001,, Tamil Nadu, India
R. Meenakshi
Department of Physics, Cauvery College for Women, Tiruchirappalli- 600 018,, Tamil Nadu, India
A. Sinthiya
Department of Physics, Srimad Andavan Arts and Science College (Autonomous), Tiruchirappalli-620 005,, Tamil Nadu, India