Affiliation: | 1. State Key Laboratory for Super Lattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China;Institute of Microelectronics, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China 2. State Key Laboratory for Super Lattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences,Beijing 100083, China 3. Institute of Microelectronics, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China |