[1] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China
[2] Ctr Mixto Univ Valencia, CSIC Inst Invest Paterna, Dept Fis Teor, Valencia 46071, Spain
[3] Ctr Mixto Univ Valencia, CSIC Inst Invest Paterna, IFIC, Valencia 46071, Spain
[4] Zhengzhou Univ, Sch Phys, Zhengzhou 450001, Peoples R China
[5] Southeast Univ, Sch Phys, Nanjing 210094, Peoples R China
[6] Univ Murcia, Dept Fis, Murcia 30100, Spain