作者机构:[1]College of Science and Research Institute for New Energy, China Three Gorges University, Yichang 443002, China, [2]Department of Physics, University of Science and Technology of Beijing, Beijing 100083, China, [3]School of Material Science and Engineering, University of Science and Technology of Beijing, Beijing 100083, China, [4]Research Center of Materials Science, Beijing Institute of Technology, Beijing 100081, China
相关基金:Project supported by the National Natural Science Foundation of China (Grant Nos. 50472092, 50672008, and 50971023), the Beijing Natural Science Foundation (Preparation and Magnetic Properties of Ferromagnetic Nanoring Lattice), and Research Foundation for Talented Scholars of China Three Gorges University. M. Y. Rafique was also supported by the Chancellor Scholarship of the University of Science and Technology of Beijing.