| Affiliation: | 1. School of Physics, Shri Mata Vaishno Devi University, Katra 182320, J&K, India;2. Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein ZA9300, South Africa;1. Engineering Research Center of Nano-Geomaterials of Ministry of Education, China University of Geosciences, Wuhan 430074, People''s Republic of China;2. Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, People’s Republic of China;1. Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa;2. Department of Physics, Faculty of Education, University of Khartoum, P.O. Box 321, Omdurman 11115, Sudan;1. Department of Chemistry, Jinan University, Guangzhou 510632, People''s Republic of China;2. College of Science, South China Agricultural University, Guangzhou 510642, People''s Republic of China;1. College of Material Science & Engineering, Sichuan University, Chengdu, Sichuan 610065, China;2. Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China;1. College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China;2. College of Chemistry & Biology and Environmental Engineering, Xiangnan University, Chenzhou, Hunan 423043, PR China;3. Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds Research and Application, Chenzhou, Hunan 423043, PR China;4. College of Science, Northwest A&F University, Yangling, Shaanxi 712100, PR China;5. College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei 443002, PR China |
