Institution: | 1.Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan ;2.Experimental Physics Laboratory, National Centre for Physics, Quaid-i-Azam University, Islamabad, 45320, Pakistan ;3.Department of Physics, Faculty of Sciences, Mirpur University of Science and Technology, Mirpur, AJ&K, Pakistan ;4.NPU-NCP Joint International Research Center for Advanced Nanomaterials and Defects Engineering, Northwestern Polytechnical University, Xi’an, 710072, China ;5.School of Materials Science & Engineering, Northwestern Polytechnical University, Xi’an, 710072, China ;6.Department of Physics & Astronomy, University of Nigeria, Nsukka, 410001, Enugu State, Nigeria ;7.UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Pretoria, South Africa ; |