Single-crystal x-ray diffraction of-at high pressure
- 1 September 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 36 (7), 3944-3947
- https://doi.org/10.1103/physrevb.36.3944
Abstract
X-ray diffraction from a single crystal of solid - has been obtained at high pressure in a diamond-anvil cell, and the crystal structure has been determined. Nineteen diffraction maxima, corresponding to the hexagonal-close-packed structure (, ), were observed. Unit-cell dimensions at 5.40±0.03 GPa and 300±1 K are Å, Å, and . The structure determination and volume measurement provide the most accurate checks to date on the equation of state and phase diagram of hydrogen in this pressure range.
Keywords
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