He Chenggong
School of Physics and Electronics, Central South University, Changsha 410083, ChinaDeng Lianwen
School of Physics and Electronics, Central South University, Changsha 410083, ChinaHe Jun
School of Physics and Electronics, Central South University, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Changsha 410083, China
U228.2