^a Guangxi Key Laboratory of Optic and Electronic Materials and Devices, MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China

^b Neutron Scattering Division, Oka Ridge National Laboratory, Oak Ridge 37831, United States

^c Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China