Institution: | 1. Key Laboratory of Atomic and Molecular Physics &2. Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University , Lanzhou, China.ygygaa@126.com;4. “Vin?a” Institute of Nuclear Sciences, Laboratory for Theoretical and Condensed Matter Physics 020, University of Belgrade , Belgrade, Serbia.;5. Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University , Lanzhou, China. |