DOI: 10.1126/science.239.4844.1131. Synchrotron X-ray Diffraction Measurements of Single-Crystal Hydrogen to 26.5 Gigapascals

Synchrotron X-ray Diffraction Measurements of Single-Crystal Hydrogen to 26.5 Gigapascals

10.1126/science.239.4844.1131

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

The crystal structure and equation of state of solid hydrogen have been determined directly to 26.5 gigapascals at room temperature by new synchrotron x-ray diffraction techniques. Solid hydrogen remains in the hexagonal close-packed structure under these pressure-temperature conditions and exhibits increasing structural anisotropy with pressure. The pressure-volume curve determined from the x-ray data represents the most accurate experimental measurement of the equation of state to date in this pressure range. The results remove the discrepancy between earlier indirect determinations and provide a new experimental constraint on the molecular-to-atomic transition predicted at higher pressures.

Bibliography

Mao, H. K., Jephcoat, A. P., Hemley, R. J., Finger, L. W., Zha, C. S., Hazen, R. M., & Cox, D. E. (1988). Synchrotron X-ray Diffraction Measurements of Single-Crystal Hydrogen to 26.5 Gigapascals. Science, 239(4844), 1131â1134.

Authors 7

H. K. Mao (first)
A. P. Jephcoat (additional)
R. J. Hemley (additional)
L. W. Finger (additional)
C. S. Zha (additional)
R. M. Hazen (additional)
D. E. Cox (additional)

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Dates

Type	When
Created	18 years, 10 months ago (Oct. 5, 2006, 5:21 p.m.)
Deposited	1 year, 7 months ago (Jan. 12, 2024, 11:51 a.m.)
Indexed	3 weeks, 5 days ago (Aug. 6, 2025, 8:53 a.m.)
Issued	37 years, 5 months ago (March 4, 1988)
Published	37 years, 5 months ago (March 4, 1988)
Published Print	37 years, 5 months ago (March 4, 1988)

Funders 0

None

BibTeX

@article{Mao_1988, title={Synchrotron X-ray Diffraction Measurements of Single-Crystal Hydrogen to 26.5 Gigapascals}, volume={239}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.239.4844.1131}, DOI={10.1126/science.239.4844.1131}, number={4844}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Mao, H. K. and Jephcoat, A. P. and Hemley, R. J. and Finger, L. W. and Zha, C. S. and Hazen, R. M. and Cox, D. E.}, year={1988}, month=mar, pages={1131–1134} }

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