作者机构:[1]State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
相关基金:Project supported by the National Natural Science Foundation of China (Nos. 60806025, 60976060) and the Youth Teacher Foundation of University of Electronic Science and Technology of China (No. jx0721),
Acknowledgement The authors would like to thank other members of the SOI team for their helpful discussion.