1. University of Bablon,College of sciences,Department of physics,Kerbala,Iraq
2. University of Thi-Qar,Faculty of Sciences,Physics Department,Thi-Qar,Iraq
3. University of Anbar,College of Education for Pure Sciences,Department of Physics,Anbar,Iraq
4. University of Thi-Qar,Nassiriya Nanotechnology Research Laboratory (NNRL), Science College,Thi-Qar,Iraq