[1] Abdul Wali Khan Univ Mardan, Dept Phys, Mardan, Pakistan
[2] Govt Post Grad Jahanzeb Coll, Saidu Sharif Swat, Pakistan
[3] Natl Univ Sci & Technol, Islamabad, Pakistan
[4] Govt Coll Hayatabad, Dept Phys, Peshawar, Pakistan
[5] Univ Punjab, Ctr High Energy Phys, Lahore, Pakistan
[6] Univ Teknol Malaysia, Fac Sci, Dept Phys, Johor Baharu, Malaysia
[7] Govt Degree Coll Women Haveli Lakha Okara, Haveli Lakha, Pakistan
[8] King Khalid Univ, Dept Chem, Fac Sci, Abha, Saudi Arabia
[9] King Khalid Univ, Res Ctr Adv Mat Sci RCAMS, Abha, Saudi Arabia
[10] Prince Sattam Bin Abdullaziz Univ, Coll Engn, Dept Mech Engn, Al Kharj, Saudi Arabia
[11] King Faisal Univ, Coll Sci, Dept Phys, Al Hasa, Saudi Arabia
[12] Alfaisal Univ, Coll Sci, Phys Dept, POB 50927, Riyadh 11533, Saudi Arabia