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arXiv 2004.11534cond-mat.mtrl-scicond-mat.dis-nncond-mat.soft
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论气相沉积玻璃的允许或禁止性质

On the Allowable or Forbidden Nature of Vapor-Deposited Glasses

Zhe Wang, Tao Du, N. M. Anoop Krishnan, Morten M. Smedskjaer, Mathieu Bauchy

摘要:

气相沉积可以产生比通过传统熔融淬火途径获得的玻璃更稳定的玻璃。然而,目前还不清楚气相沉积玻璃是“允许的”还是“禁止的”,也就是说,如果它们等同于通过极其缓慢地冷却液体形成的玻璃,或者它们在性质上不同于熔融淬火玻璃。在这里,基于反应分子动力学模拟(MD)的二氧化硅玻璃,我们证明了气相沉积玻璃的允许或禁止的性质取决于基板的温度,反过来,被发现编码在其中程有序结构。

英文摘要:

Vapor deposition can yield glasses that are more stable than those obtained by the traditional melt-quenching route. However, it remains unclear whether vapor-deposited glasses are "allowable" or "forbidden," that is, if they are equivalent to glasses formed by cooling extremely slowly a liquid or if they differ in nature from melt-quenched glasses. Here, based on reactive molecular dynamics simulation (MD) of silica glasses, we demonstrate that the allowable or forbidden nature of vapor-deposited glasses depends on the temperature of the substrate and, in turn, is found to be encoded in their medium-range order structure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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