作者机构:[1]Institute of Microelectronics, Xidian University, Xi 'an 710071, China
相关基金:Project supported by the National Natural Science Foundation of China(Nos.60725415 60971066); the National High-Tech Research and Development Program of China(Nos.2009AA01Z258 2009AA01Z260); the National Science & Technology Important Project of China(No.2009ZX01034-002-001-005).