作者机构:[1]Faculty of Materials, Optoelectronics and Physics, Xiangtan University, Xiangtan 411105, China, [2]Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105, China
相关基金:Projects(10672139, 10825209, 50872117) supported by the National Natural Science Fotmdation of China; Proj ect(207079) supported by the Key Program of Ministry of Education of China; Project(07JJ5002) supported by the Natural Science Foundation of Hunan Province, China; Project(08C862) supported by Scientific Research Fund of Hunan Provincial Education Department, China; Project([2008]101) supported by Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry; Project(J2007]362) supported by Hunan Prestigious Fu-rong Scholar Award, China