Experimental and modelling evidence for structural crossover in supercritical CO₂
Article
Cockrell, C. J., Dicks, O., Wang, L., Trachenko, K., Soper, A. K., Brazhkin, V. V. and Marinakis, S. 2020. Experimental and modelling evidence for structural crossover in supercritical CO₂. Physical Review E. 101 (Art. 052109). https://doi.org/10.1103/PhysRevE.101.052109
Authors | Cockrell, C. J., Dicks, O., Wang, L., Trachenko, K., Soper, A. K., Brazhkin, V. V. and Marinakis, S. |
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Abstract | Physics of supercritical state is understood to a much lesser degree compared to subcritical liquids. Carbon dioxide in particular has been intensely studied, yet little is known about the supercritical part of its phase diagram. Here, we combine neutron scattering experiments and molecular dynamics simulations and demonstrate the structural crossover at the Frenkel line. The crossover is seen at pressures as high as 14 times the critical pressure and is evidenced by changes of the main features of the structure factor and pair distribution functions. |
Journal | Physical Review E |
Journal citation | 101 (Art. 052109) |
ISSN | 2470-0053 |
Year | 2020 |
Publisher | American Physical Society |
Accepted author manuscript | License File Access Level Anyone |
Digital Object Identifier (DOI) | https://doi.org/10.1103/PhysRevE.101.052109 |
Web address (URL) | https://doi.org/10.1103/PhysRevE.101.052109 |
Publication dates | |
Online | 12 May 2020 |
Publication process dates | |
Accepted | 08 Apr 2020 |
Deposited | 16 Apr 2020 |
Copyright holder | © 2020 American Physical Society. All rights reserved. |
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