| Affiliation: | 1. Theoretical Physics Group, Faculty of Sciences, Chouaïb Doukkali University, PO Box 20, 24000 El Jadida, Morocco;2. Saudi Center for Theoretical Physics, Dhahran, Saudi Arabia;3. Physics Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia;1. School of Mechanical Engineering and Automation, Shanghai University, Shanghai 200072, P.R. China;2. Key Laboratory of Advanced Display and System Applications, Ministry of Education, 149 Yanchang Road, Shanghai 200072, P. R. China;1. Department of Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden;2. Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk 630090, Russia |
