|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIX
||Local Self-motion and Diffusion behaviors in Metallic Liquids Studied by Van Hove Function
||Zengquan Wang, Wojciech Dmowski, Takeshi Egami
|On-Site Speaker (Planned)
Local self-motion and diffusion behaviors in metallic liquids are not easy to measure. Quasi-elastic neutron scattering (QENS) provided a possible method, nevertheless it has great limitations and can only be applied to several metallic elements with low neutron scattering cross sections. Here, we show that the self-part of the Van Hove correlation function, Gs(r, t), experimentally determined from inelastic neutron scattering (INS), can be used to analyze the local self-motion dynamics in metallic liquids Zr80Pt20 and Zr50Cu50. The difference between short-range self-motion diffusivity obtained here and the long-range diffusivity triggers new perspective on the diffusion behaviors in metallic liquids. This method using the experimentally determined self-part Van Hove function will be useful to study the local dynamics of atoms in many metallic liquids.