Ionic model for highly compressed solid hydrogen
We propose a simple ionic model for high-pressure conducting phase IV of solid hydrogen observed recently at room temperature. It is based on an assumption of dissociative ionization of hydrogen molecules 3H₂= 2H₂⁽⁺⁾2H⁽⁻⁾ induced by high compression. The model proposed predicts the first order tra...
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| Date: | 2013 |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Series: | Физика низких температур |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/118448 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Ionic model for highly compressed solid hydrogen / E.S. Yakub // Физика низких температур. — 2013. — Т. 39, № 5. — С. 541–547. — Бібліогр.: 19 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | We propose a simple ionic model for high-pressure conducting phase IV of solid hydrogen observed recently
at room temperature. It is based on an assumption of dissociative ionization of hydrogen molecules 3H₂= 2H₂⁽⁺⁾2H⁽⁻⁾ induced by high compression. The model proposed predicts the first order transition of
molecular hydrogen solid into partly ionic conducting phase at megabar pressures and describes the temperature
dependence of resistivity at room temperature. Its predictions are consistent with high temperature shockcompression
experiments which exhibit conductivity of multiply shocked hydrogen. Location of phase transition
line, change of volume, and ionization degree in solid phase IV are estimated. |
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