The activation energy (E_A) spectra of the potential energy landscape (PEL) provide 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, we found that the shear moduli 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, this 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 the PEL.

中文翻译：

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软模式参数作为金属玻璃中活化能谱的指标

势能态（PEL）的活化能（E _A）光谱为解释非晶态材料中的复杂现象提供了方便的视角。然而，之间的链路ê_甲金属玻璃的光谱和其它物理性质仍然是神秘。通过系统地探测许多具有不同局部几何顺序的金属玻璃样品的E _A光谱，这些光谱与宽广的加工历史相对应，我们发现样品的剪切模量与E _A光谱的算术平均值密切相关，而不是与局部几何排序。此外，我们研究了获得的E _A的相关性光谱和各种公认的物理参数。我们的研究结果清楚地表明，软模参数Ψ与E _A谱是相关的；因此，这可能是金属玻璃性能的良好指标，并通过PEL介质为金属玻璃的结构-性能关系提供了重要的启示。