arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.4383cond-mat.softcond-mat.stat-mechphysics.chem-ph
收藏

液体pH2的密度泛函描述

Towards a density functional description of liquid pH2

J. Navarro, F. Ancilotto, M. Barranco, M. Pi

摘要:

提出了一种描述仲氢在汽液共存区性质的有限温度密度泛函方法。第一个建议的功能是零范围,其中的密度梯度项进行调整,以便重现在低温下的液体-蒸汽界面的表面张力。第二个功能是有限的范围内,虽然它是适合再现散装pH值为2的属性,它被证明产生的表面性质与实验吻合良好。这些泛函被用来研究的液体-蒸汽界面的表面厚度,在平面Rb模型表面上的仲氢的润湿过渡,和均匀的空化在散装液体pH 2。

英文摘要:

A finite-temperature density functional approach to describe the properties of parahydrogen in the liquid-vapor coexistence region is presented. The first proposed functional is zero-range, where the density-gradient term is adjusted so as to reproduce the surface tension of the liquid-vapor interface at low temperature. The second functional is finite-range and, while it is fitted to reproduce bulk pH2 properties only, it is shown to yield surface properties in good agreement with experiments. These functionals are used to study the surface thickness of the liquid-vapor interface, the wetting transition of parahydrogen on a planar Rb model surface, and homogeneous cavitation in bulk liquid pH2.

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。

↑