Melting curves of molecular hydrogen and molecular deuterium under high pressures between 20 and 373 K

V. Diatschenko, C. W. Chu, D. H. Liebenberg, D. A. Young, M. Ross, R. L. Mills

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74 引文 斯高帕斯(Scopus)

摘要

We determined the melting curve of molecular hydrogen and molecular deuterium at closely spaced intervals from 20 to 373 K by two different techniques using high-pressure diamond cells. The cells were loaded with liquid at low temperature or with compressed gas at room temperature. Empirical functions for the melting curves were evaluated from least-squares fits of the data. Values of the compressibility and Debye temperature were computed at melting, and the results are compared with those calculated from various theoretical models. The good agreement shows that the models are generally valid, although small systematic deviations may point the way toward refinements in modeling. Our study also demonstrates the need to determine a one-piece intermolecular potential valid over a wide pressure range by refitting all experimental data, including the shock data recently made available.

原文English
頁(從 - 到)381-389
頁數9
期刊Physical Review B
32
發行號1
DOIs
出版狀態Published - 1985

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學

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