1. School of Physical Science and Technology, Yunnan University, Kunming, 650091, China
2. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education)School of Materials and Metallurgy, Northeastern University, Shenyang, 110819, China
3. State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum MetalsKunming Institute of Precious Metals, Kunming, 650106, China