Fast crystal growth of ice VII owing to the decoupling of translational and rotational ordering
Despite the abundance of water's crystalline polymorphs, the growth mechanisms of most
ice forms remain poorly understood. This study applies extensive molecular dynamics (MD) …
ice forms remain poorly understood. This study applies extensive molecular dynamics (MD) …
Electrolyte Permeability in Plastic Ice VII
F Martelli - The Journal of Physical Chemistry B, 2023 - ACS Publications
Deep brines in water-rich planets form when electrolytes diffuse from the rocky interior
through layers of thick dense ice such as ice VII and the hypothesized plastic ice VII. We …
through layers of thick dense ice such as ice VII and the hypothesized plastic ice VII. We …
Structural phase transition in NH₄F under extreme pressure conditions
Abstract Ammonium fluoride (NH₄F) exhibits a variety of crystalline phases depending on
temperature and pressure. By employing Raman spectroscopy and synchrotron X-ray …
temperature and pressure. By employing Raman spectroscopy and synchrotron X-ray …
Orientational Disorder Drives Site Disorder in Plastic Ammonia Hemihydrate
N Avallone, S Huppert, P Depondt… - Physical Review Letters, 2024 - APS
In the 2–10 GPa pressure range, ammonia hemihydrate H 2 O:(NH 3) 2 (AHH) is a
molecular solid in which intermolecular interactions are ruled by distinct types of hydrogen …
molecular solid in which intermolecular interactions are ruled by distinct types of hydrogen …
Low-temperature dynamics of water confined in unidirectional hydrophilic zeolite nanopores
M Rescigno, M Lucioli, FG Alabarse… - The Journal of …, 2023 - ACS Publications
The dynamical properties of water molecules confined in the unidirectional hydrophilic
nanopores of AlPO4-54 are investigated with quasi-elastic neutron scattering as a function …
nanopores of AlPO4-54 are investigated with quasi-elastic neutron scattering as a function …
High pressure–temperature phase diagram of ammonia hemihydrate
L Andriambariarijaona, F Datchi, H Zhang, K Béneut… - Physical Review B, 2023 - APS
We report a comprehensive experimental investigation of the phase diagram of ammonia
hemihydrate (AHH) in the range of 2–30 GPa and 300–700 K, based on Raman …
hemihydrate (AHH) in the range of 2–30 GPa and 300–700 K, based on Raman …
Equation of state of ammonia dihydrate up to 112 GPa by static and dynamic compression experiments in diamond anvil cells
Understanding the high-pressure behavior of ammonia hydrates is relevant for modeling the
interior of solar and extrasolar icy bodies. We present here the results of high-pressure x-ray …
interior of solar and extrasolar icy bodies. We present here the results of high-pressure x-ray …
Complexities in the structural evolution with pressure of water–ammonia mixtures
The structural evolution with pressure of icy mixtures of simple molecules is a poorly
explored field despite the fundamental role they play in setting the properties of the crustal …
explored field despite the fundamental role they play in setting the properties of the crustal …
Hydrogen dynamics in solids: quantum diffusion and plastic phase transition in hydrates under pressure
N Avallone - 2023 - theses.hal.science
Atomic-scale simulations of ammonia hydrates pose major theoretical and numerical
challenges for several reasons. The description of disordered and/or frustrated systems …
challenges for several reasons. The description of disordered and/or frustrated systems …