activity
20192025
most citedTransition in the supercritical state of matter: experimental evidence

77 citations · 215 across the 15 of their papers we have counts for

collaborators

15 papers

cond-mat.mtrl-sci2025

Achieving accurate entropy and melting point by ab initio molecular dynamics and zentropy theory: Application to fluoride and chloride molten salts

Shun-Li Shang, Nigel L. E. Hew, Rushi Gong +6

We have recently developed a breakthrough methodology for rapidly computing entropy in both solids and liquids by integrating a multiscale entropy approach (known as zentropy theor…

physics.chem-ph2024★ 13 cited

Thermodynamics and transport in molten chloride salts and their mixtures

Cillian Cockrell, Margaret-Ann Withington, Harvey L. Devereux +7

Molten salts are important in a number of energy applications, but the fundamental mechanisms operating in ionic liquids are poorly understood, particularly at higher temperatures.…

cond-mat.mtrl-sci2024

Heat Transport in Ionic Liquids

Cillian Cockrell, Aleksandra Dragović

Heat transfer in liquids is a very challenging problem as it combines the competing effect of high frequency oscillations, which dominate liquid heat capacity, and diffusive motion…

cond-mat.mtrl-sci2024★ 1 cited

Performance of the MACE-MP-0 potential for calculating viscosity in LiF molten salt

Harvey L. Devereux, Margaret-Ann Withington, Cillian Cockrell +2

We perform molecular dynamics simulations of molten Lithium Fluoride using the MACE-MP-0 (small) machine learnt interatomic potential and the classical Buckingham and Born-Huggins-…

cond-mat.mtrl-sci2024

Thermodynamic modeling of the LiCl-KCl-LaCl system with Bayesian model selection and uncertainty quantification

Rushi Gong, Shun-Li Shang, Vitaliy G. Goncharov +5

Chloride molten salts are increasingly used in pyroprocessing techniques for the separation of lanthanides. Understanding thermodynamic properties of these salts is essential to pr…

cond-mat.soft2023

Configurational and Vibrational Entropy in Hydrogen-bonded Fluids

Cillian Cockrell, Aleksandra Dragović

The thermodynamics of liquids and supercritical fluids is notorious for eluding a general theory, as can be done for crystalline solids on the basis of phonons and crystal symmetry…

cond-mat.stat-mech2023★ 4 cited

Fast dynamics and high effective dimensionality of liquid fluidity

Cillian Cockrell, Oliver Dicks, Ilian T. Todorov +2

Fluidity, the ability of liquids to flow, is the key property distinguishing liquids from solids. This fluidity is set by the mobile transit atoms moving from one quasi-equilibrium…

cond-mat.stat-mech2022★ 17 cited

Double universality of the transition in the supercritical state

Cillian Cockrell, Kostya Trachenko

Universality aids consistent understanding of physical properties. This includes understanding the states of matter where a theory predicts how a property of a phase (solid, liquid…

cond-mat.stat-mech2022★ 12 cited

Stochastic Thermodynamics in a Non-Markovian Dynamical System

Cillian Cockrell, Ian J Ford

The developing field of stochastic thermodynamics extends concepts of macroscopic thermodynamics such as entropy production and work to the microscopic level of individual trajecto…

cond-mat.soft2021★ 77 cited

Transition in the supercritical state of matter: experimental evidence

Cillian Cockrell, Vadim V. Brazhkin, Kostya Trachenko

A large and mostly unexplored part of the phase diagram lies above the critical point. The supercritical matter was traditionally believed to be physically homogeneous with no disc…

cond-mat.stat-mech2021★ 17 cited

Universal interrelation between dynamics and thermodynamics of fluids: dynamically-driven "c"-transition

Cillian Cockrell, Vadim V. Brazhkin, Kostya Trachenko

Our first very wide survey of the supercritical phase diagram and its key properties reveals a universal interrelation between dynamics and thermodynamics and an unambiguous transi…

cond-mat.stat-mech2020★ 2 cited

Crossover of dynamical instability and chaos in the supercritical state

C. Cockrell

We calculate the maximal Lyapunov exponent for a bulk system of 256 Lennard-Jones particles in constant energy molecular dynamics simulations deep into the supercritical state. We…

cond-mat.soft2020★ 41 cited

Collective modes and gapped momentum states in liquid Ga: experiment, theory and simulation

Ramil M. Khusnutdinoff, Cillian Cockrell, Oliver A. Dicks +7

Collective excitations in liquids are important for understanding liquid dynamical and thermodynamic properties. Gapped momentum states (GMS) are a notable feature of liquid dynami…

cond-mat.other2020★ 22 cited

Experimental and modelling evidence for structural crossover in supercritical CO

Cillian J. Cockrell, Oliver Dicks, Ling Wang +4

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 a…

cond-mat.soft2019★ 9 cited

Pronounced structural crossover in supercritical water

Cillian Cockrell, Oliver Dicks, Vadim Brazhkin +1

There have been ample studies of the many phases of H2O in both its solid and low pressure liquid states, and the transitions between them. Using molecular dynamics simulations we…