论文标题
通过对无定形SIO $ _2 $底物的沉积来合成Cu单组金属玻璃：一项分子动力学研究
Synthesis of Cu mono-component metallic glass by the deposition on amorphous SiO$_2$ substrate: a molecular dynamics study
论文作者
论文摘要
在这项工作中，我们模拟了无定形SIO $ _2 $底物上Cu原子的物理蒸气沉积（PVD）过程。所得的Cu薄层表现出无定形结构。还以不同的冷却速率模拟了从2000 K到50 K的CU液体淬火，以形成CU金属玻璃进行比较。来自两个不同过程（PVD和Quenching）的CU玻璃显示出相同的径向分布函数，但与Voronoi tessellation分析不同。与熔融液压的对应物相比，PVD玻璃表现出较高的密度和较低的势能，该玻璃与超高玻璃的性质相对应。
In this work, we simulated the physical vapor deposition (PVD) process of Cu atoms on the amorphous SiO$_2$ substrate. The resulting Cu thin layer exhibit amorphous structure. The Cu liquid quenching from 2000 K to 50 K was also simulated with different cooling rate to form the Cu metallic glass for comparison. The Cu glasses from the two different processes (PVD and quenching) revealed the same radial distribution function but different local structure from the Voronoi tessellation analysis. The PVD glass exhibit higher densities and lower potential energy compared with the melt-quenched counterpart, which corresponded to the properties of ultrastable glasses.
