Icosahedral short-range order in amorphous alloys
Icosahedral short-range order in amorphous alloys
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DOI：
10.1103/physrevlett.92.145502
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发表时间：
2004-04-09
影响因子：
8.6
通讯作者：
Ma, E
中科院分区：
文献类型：
--
作者：
Luo, WK;Sheng, HW;Ma, E
我们用局部环境探针对非晶固体中的二十面体近程有序进行了表征。通过反向蒙特卡罗模拟分析了Ni-Ag非晶合金的扩展x射线吸收精细结构和x射线吸收近边结构，证明了这种拓扑局部秩序即使在结晶后不形成准晶相的非晶合金中也是明显的。
We have characterized the icosahedral short-range order in amorphous solids using local environment probes. Such topological local order is pronounced even in an amorphous alloy that does not form quasicrystalline phases upon crystallization, as demonstrated by the extended x-ray absorption fine structure and x-ray absorption near-edge structure of a Ni-Ag amorphous alloy analyzed through reverse Monte Carlo simulations.