Pathways to metallic hydrogen

The traditional pathway that researchers have used in the goal of producing atomic metallic hydrogen is to compress samples with megabar pressures at low temperature. A number of phases have been observed in solid hydrogen and its isotopes, but all are in the insulating phase. The results of experim...

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Published in:Физика низких температур
Date:2009
Main Authors: Silvera, Isaac F., Deemyad, Shanti
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2009
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Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/117128
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Pathways to metallic hydrogen / Isaac F. Silvera, Shanti Deemyad // Физика низких температур. — 2009. — Т. 35, № 4. — С. 413-422. — Бібліогр.: 65 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Silvera, Isaac F.
Deemyad, Shanti
author_facet Silvera, Isaac F.
Deemyad, Shanti
citation_txt Pathways to metallic hydrogen / Isaac F. Silvera, Shanti Deemyad // Физика низких температур. — 2009. — Т. 35, № 4. — С. 413-422. — Бібліогр.: 65 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description The traditional pathway that researchers have used in the goal of producing atomic metallic hydrogen is to compress samples with megabar pressures at low temperature. A number of phases have been observed in solid hydrogen and its isotopes, but all are in the insulating phase. The results of experiment and theory for this pathway are reviewed. In recent years a new pathway has become the focus of this challenge of producing metallic hydrogen, namely a path along the melting line. It has been predicted that the hydrogen melt line will have a peak and with increasing pressure the melt line may descend to zero Kelvin so that high pressure metallic hydrogen may be a quantum liquid. Even at lower pressures hydrogen may melt from a molecular solid to an atomic liquid. Earlier attempts to observe the peak in the melting line were thwarted by diffusion of hydrogen into the pressure cell components and other problems. In the second part of this paper we present a detailed description of our recent successful demonstration of a peak in the melting line of hydrogen.
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
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language English
last_indexed 2025-11-26T04:49:44Z
publishDate 2009
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Silvera, Isaac F.
Deemyad, Shanti
2017-05-20T07:06:48Z
2017-05-20T07:06:48Z
2009
Pathways to metallic hydrogen / Isaac F. Silvera, Shanti Deemyad // Физика низких температур. — 2009. — Т. 35, № 4. — С. 413-422. — Бібліогр.: 65 назв. — англ.
0132-6414
PACS: 62.50.–p, 64.60.Ej, 67.63.–r
https://nasplib.isofts.kiev.ua/handle/123456789/117128
The traditional pathway that researchers have used in the goal of producing atomic metallic hydrogen is to compress samples with megabar pressures at low temperature. A number of phases have been observed in solid hydrogen and its isotopes, but all are in the insulating phase. The results of experiment and theory for this pathway are reviewed. In recent years a new pathway has become the focus of this challenge of producing metallic hydrogen, namely a path along the melting line. It has been predicted that the hydrogen melt line will have a peak and with increasing pressure the melt line may descend to zero Kelvin so that high pressure metallic hydrogen may be a quantum liquid. Even at lower pressures hydrogen may melt from a molecular solid to an atomic liquid. Earlier attempts to observe the peak in the melting line were thwarted by diffusion of hydrogen into the pressure cell components and other problems. In the second part of this paper we present a detailed description of our recent successful demonstration of a peak in the melting line of hydrogen.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
7th International Conference on Cryocrystals and Quantum Crystals
Pathways to metallic hydrogen
Article
published earlier
spellingShingle Pathways to metallic hydrogen
Silvera, Isaac F.
Deemyad, Shanti
7th International Conference on Cryocrystals and Quantum Crystals
title Pathways to metallic hydrogen
title_full Pathways to metallic hydrogen
title_fullStr Pathways to metallic hydrogen
title_full_unstemmed Pathways to metallic hydrogen
title_short Pathways to metallic hydrogen
title_sort pathways to metallic hydrogen
topic 7th International Conference on Cryocrystals and Quantum Crystals
topic_facet 7th International Conference on Cryocrystals and Quantum Crystals
url https://nasplib.isofts.kiev.ua/handle/123456789/117128
work_keys_str_mv AT silveraisaacf pathwaystometallichydrogen
AT deemyadshanti pathwaystometallichydrogen