Li-Gong Li, Shu-Man Liu*, Shuai Luo, Tao Yang, Li-Jun Wang, Feng-Qi Liu, Xiao-Ling Ye, Bo Xu and Zhan-Guo Wang
* Corresponding author: Shu-Man Liu liusm@semi.ac.cn
Nanoscale Research Letters 2012, 7:160 doi:10.1186/1556-276X-7-160
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