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Ultrahigh pressures - Optical observations and Raman measurements of hydrogen and deuterium to 1.47 MbarHydrogen and deuterium have been pressurized under static conditions to 1.47 Mbar, which is higher by a factor of 2 than the static data of Sharma et al. (1980). Measurements of the vibron indicate an initial increase and then a sharp decrease in frequency at pressures above 0.5 Mbar. At 1.14 Mbar the vibron frequency decreased to the zero-pressure value, and at 1.47 Mbar the frequency of the vibron in hydrogen is 90/cm below the value of the vibrational mode of the isolated molecule. This pronounced softening of the vibron suggests strengthened intermolecular interaction.
Document ID
19850057897
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mao, H. K.
(Carnegie Institution of Washington Washington, DC, United States)
Bell, P. M.
(Carnegie Institution of Washington Washington, DC, United States)
Hemley, R. J.
(Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1985
Publication Information
Publication: Physical Review Letters
Volume: 55
ISSN: 0031-9007
Subject Category
Thermodynamics And Statistical Physics
Accession Number
85A40048
Funding Number(s)
CONTRACT_GRANT: NAGW-214
CONTRACT_GRANT: DE-AS05-80ER-10754
Distribution Limits
Public
Copyright
Other

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