High pressure x-ray diffraction studies on solid N2 up to 43.9 GPa
- 15 December 1990
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 93 (12) , 8968-8972
- https://doi.org/10.1063/1.459236
Abstract
Solid N2 was studied by energy‐dispersive x‐ray diffraction between 5.75 and 43.9 GPa at room temperature. The transition from δ‐N2 (Pm3n) to ε‐N2 (R3̄c) was observed at 16.3±0.5 GPa. The pressure‐volume curves for both phases were determined. A comparison with the results of a priori calculations shows good agreement up to ∼12 GPa, however, at higher pressures the theoretical isotherm becomes increasingly stiffer.Keywords
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