论文标题
软模式参数作为金属玻璃激活能谱的指标
Soft mode parameter as an indicator for the activation energy spectra in metallic glass
论文作者
论文摘要
势能景观（PEL）的激活能（E_A）光谱为解释无定形材料中的复杂现象提供了方便的观点。但是，金属眼镜中的E_A光谱与其他物理特性之间的联系仍然是神秘的。通过系统地对具有不同局部几何排序的众多金属玻璃样品进行系统探测E_A光谱，这对应于广泛的加工历史，发现样品的剪切模量与E_A光谱的算术平均值密切相关，而不是与局部的地质排序相关。此外，我们研究了获得的E_A光谱和各种良好的物理参数的相关性。我们研究的结果清楚地表明，软模式参数ψ和E_A频谱是相关的。因此，它可能是金属玻璃特性的良好指标，并通过PEL的介质为金属玻璃中的结构特性关系提供了重要的灯光。
The activation energy (E_A) spectra of potential energy landscape (PEL) provides a convenient perspective for interpreting complex phenomena in amorphous materials; however, the link between the E_A spectra and other physical properties in metallic glasses is still mysterious. By systematically probing the E_A spectra for numerous metallic glass samples with distinct local geometric ordering, which correspond to broad processing histories, it is found that the shear modulus of the samples are strongly correlated with the arithmetic mean of the E_A spectra rather than with the local geometrical ordering. Furthermore, we studied the correlation of the obtained E_A spectra and various well-established physical parameters. The outcome of our research clearly demonstrates that the soft mode parameter Ψ and the E_A spectrum are correlated; therefore, it could be a good indicator of metallic glass properties and sheds important light on the structure-property relationship in metallic glass through the medium of PEL.
