作者机构:[1]Department of Physics, Wuhan University, Wuhan 430072, China, [2]School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430072, China, [3]International Center for Material Physics, Shenyang 110016, China, [4]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
相关基金:Acknowledgements This work was supported by the National Natural Science Foundation of China (No. 10474074) and the StateKey Laboratory of Advanced Technology for Materials Synthesis and Processing (Wuhan University of Technology, WUT 2004 M03).