1. Department of Physics and Astronomy, The University of Kansas, Lawrence, Kansas 66045, United States
2. Department of Physics, Jazan University, Jazan 45142, Saudi Arabia
3. Department of Physics, The University of Alabama in Huntsville, Huntsville, Alabama 35899, United States
4. Department of Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
5. Department of Physics, University of Umm Al-Qura, P.O. Box 56335, Makkah 21955, Saudi Arabia