High-precision equation of state benchmark for cryogenic liquid deuterium at ultrahigh pressure
| Autor: | Sizu Fu, Dong Jiaqin, Junjian Ye, Zhiheng Fang, He Zhiyu, Jia Guo, Fan Zhang, Huang Xiuguang, Xie Zhiyong, Tu Yuchun, Hua Shu, Qili Zhang, Wei Wang, Haifeng Liu |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Physical Review B. 103 |
| ISSN: | 2469-9969 2469-9950 |
| Popis: | We provide a principal Hugoniot of cryogenic liquid deuterium at a pressure of $27lPl240$ GPa, with reflected-shock data of up to $\ensuremath{\sim}830$ GPa. The maximum density reaches $\ensuremath{\sim}1.49$ $\mathrm{g}/{\mathrm{cm}}^{3}$, about 8.7 times the initial density. Our independent principal Hugoniot experimental data broadly support the wide-regime equation of state (WEOS) model, which well matches Fernandez-Pa\~nella et al. [Phys. Rev. Lett. 122, 255702 (2019)] and Knudson et al. [Phys. Rev. Lett. 118, 035501 (2017)] experimental data over the observed pressure range up to 550 GPa, and most of three sets of reflected shock data are in accordance with our theory up to 1 TPa. Our high-precision experimental results establish an important benchmark equation of state of deuterium and conform to the WEOS model quite well. Our work is useful for the development of the high-pressure response of hydrogen's isotopes, directly related to inertial confinement fusion, planetary science, and metallization. |
| Databáze: | OpenAIRE |
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