1. Department of Physics University of Lakki Marwat Lakki Marwat Khyber Pakhtunkhwa Pakistan
2. Laboratory for Research in Advanced Materials, Department of Physics University of Science & Technology Bannu, Department of Physics Bannu Khyber Pakhtunkhwa Pakistan
3. Materials Research Institute The Pennsylvania State University University Park Pennsylvania USA
4. Center for Materials Science Islamia College Peshawar Peshawar Khyber Pakhtunkhwa Pakistan
5. Department of Physics University of Lahore Lahore Pakistan
6. Department of Physics University of Peshawar Peshawar Khyber Pakhtunkhwa Pakistan