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Isotope effects in dense solid hydrogen - Phase transition in deuterium at 190 + or - 20 GPaRaman measurements of solid normal deuterium compressed in a diamond-anvil cell indicate that the material undergoes a structural phase transformation at 190 + or - 20 GPa and 77 K. Spectroscopically, the transition appears analogous to that observed in hydrogen at 145 + or - 5 GPa. The large isotope effect on the transition pressure suggests there is a significant vibrational contribution to the relative stability of the solid phases of hydrogen at very high densities.
Document ID
19900023405
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hemley, R. J.
(Carnegie Institution of Washington Washington, DC, United States)
Mao, H. K.
(Carnegie Institution of Washington Washington, DC, United States)
Date Acquired
August 14, 2013
Publication Date
September 25, 1989
Publication Information
Publication: Physical Review Letters
Volume: 63
ISSN: 0031-9007
Subject Category
Solid-State Physics
Accession Number
90A10460
Funding Number(s)
CONTRACT_GRANT: NSF EAR-87-20326
CONTRACT_GRANT: NAGW-1722
CONTRACT_GRANT: NSF EAR-87-08127
Distribution Limits
Public
Copyright
Other

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