| Institution: | 1. Department of Applied Physics, University for Development Studies, Navrongo, Ghana;2. Department of Physics, College of Agriculture and Natural Sciences, U.C.C., Ghana;3. Department of Mathematics, College of Agriculture and Natural Sciences, U.C.C., Ghana;1. Department of Physics and Astronomy, University of Manitoba, Winnipeg, Canada R3T 2N2;2. Department of Physics/Theoretical Physics, University of Oulu, Oulu FIN-90014, Finland;1. Department of Solid State Physics, Yerevan State University, Alex Manoogian 1, 0025 Yerevan, Armenia;2. National University of Architecture and Construction of Armenia, Teryan 105, 0009 Yerevan, Armenia;3. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica, Chile;4. SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom;1. Department of Physics and Engineering, Moldova State University, Chisinau MD-2009, Republic of Moldova;2. Institute of Applied Physics, Moldavian Academy of Science, Chisinau MD-2028, Republic of Moldova;3. Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea;1. National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Street, RO-400293 Cluj-Napoca, Romania;2. Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, 2801 South University Ave, Little Rock 72204, USA;3. Department of Chemistry, University of Arkansas at Little Rock, 2801 South University Ave, Little Rock 72204, USA;1. Jiangsu Key Laboratory of Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, PR China;2. Xizang Key Laboratory of Optical Information Processing and Visualization Technology, School of Information Engineering, Xizang Minzu University, Xianyang 712082, PR China |
