[1] Hubei Normal Univ, Inst Adv Mat, Coll Phys & Elect Sci, Huangshi 435002, Peoples R China
[2] Southeast Univ, Sch Phys, Key Lab Quantum Mat & Devices, Minist Educ, Nanjing 211189, Peoples R China
[3] Shangdong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
[4] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
[5] Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China