Affiliation: | Zhang Deng-Hong, Shi Ying-Long, Jiang Jun, Dong Chen-Zhong, and Fumihiro Zoike (a) Key Laboratory of Atomic and Molecular Physics & Fhnctional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China b) Joint Laboratory of Atomic and Molecular Physics, NWNU & IMP CAS, Lanzhou 730070, China c) Physics Department, School of Medicine, Kitasato University, 1-15-1 Kitasato, 228-8555, Japan) |