Studies on anomalous dynamic properties in supercritical metallic fluids using a high-resolution inelastic x-ray scattering technique

为了了解从孤立原子到金属的凝聚过程，我们利用高分辨率非弹性x射线散射技术研究了高温高压下超临界金属流体（如流体Hg和流体A_<S2>S_<E3>）中的原子动力学。此外，我们还通过大角和小角x射线散射测量获得了原子间相互作用和中程相关的信息。这些结果表明，传导电子在原子的个体动力学和集体动力学中起着不同的作用。

To understand the condensation process from isolated atoms to a metal, we have investigated atomic dynamics in supercritical metallic fluids at high temperatures and high pressures, such as fluid Hg and fluid A_<S2>S_<E3>, using a high-resolution inelastic x-ray scattering technique. In addition, we have obtained information on the interatomic interaction and medium-range correlation by large- and small-angle x-ray scattering measurements. From these results, it has been clarified that conduction electrons play different roles for individual and collective dynamics of atoms.