Chao Shi, Jia-Jun Ma, Jia-Ying Jiang, Miao-Miao Hua, Qi Xu, Hui Yu, Yi Zhang,* and Heng-Yun Ye*
Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China