Local structural order and single-particle dynamics in metallic glass
Local structural order and single-particle dynamics in metallic glass
复制标题
金属玻璃中的局部结构有序和单粒子动力学
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
A. Mokshin
中科院分区：
文献类型：
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作者：
R. Khusnutdinoff;A. Mokshin
本文研究了Al 50 Cu 50非晶合金的原子动力学。根据Wendt-Abraham参数和对关联熵的变化确定了临界玻璃形成温度Tc = 500 K。它表明，幂分数记忆函数允许我们在模式耦合理论的框架内描述的非相干散射函数的时间依赖性从原子动力学模拟的温度范围（T = 100-2000 K）宽。
The atomic dynamics of the amorphous metallic alloy Al50Cu50 is investigated in this work. The critical glass-forming temperature is defined from the behavior change of the Wendt—Abraham parameter and the pair-correlation entropy, and is Tc ≈ 500 K. It is shown that the power-fractional memory function allows us to describe in the framework of the mode-coupling theory the time dependences of the incoherent scattering functions obtained from the atomic dynamic simulations for the wide region of temperatures (T = 100–2000 K).