基金国家自然科学基金(the National Natural Science Foundation of Chinaunder Grant No.60773047)国家高技术研究发展计划(863)(the National High-Tech Researchand Development Plan of Chinaunder Grant No.2001AA114060)+4 种基金教育部留学回国人员科研启动基金(The Project-sponsored by SRF for ROCSSEMNo.教外司留[2005]546号)湖南省自然科学基金(the Natural Science Foundation of Hunan Province of Chinaunder Grant No.05JJ30125)湖南省教育厅重点科研项目(No.06A074)。