Abstract

The formation of nanocontacts consisting of copper (Cu) and platinum (Pt) atoms at various temperatures (0–300 K), relative concentrations of platinum atoms (0–20%), and elongation directions [100], [110], and [111] is investigated using molecular dynamics method. The nanocontact breaking area has a complex amorphous structure, for the description of which we propose three models. To determine the quantitative contributions from these models to the structure of the breaking area, we analyze the short-range order using the radial distribution function. The temperature dependence of the nanocontact structure in the breaking area is analyzed.

中文翻译：

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铜-铂纳米触点伸长的分子动力学模拟

摘要

在不同温度（0–300 K），铂原子的相对浓度（0–20％）和延伸方向[100]，[110]和[120]下，由铜（Cu）和铂（Pt）原子组成的纳米接触的形成。 [111]是使用分子动力学方法研究的。纳米接触破坏区域具有复杂的非晶结构，为此，我们提出了三种模型。为了确定这些模型对断裂区域结构的定量贡献，我们使用径向分布函数分析了短程有序。分析了纳米接触结构在断裂区域中的温度依赖性。