86 citations · 322 across the 8 of their papers we have counts for
8 papers
The raman signal of a hindered rotor
Peter I. C. Cooke, Ioan B. Magdǎu, Miriam Peña-Alvarez +6
We present a method for calculation of Raman modes of the quantum solid phase I solid hydrogen and deuterium. We use the mean-field assumption that the quantised excitations are lo…
The Icosahedral (H Supermolecule
Graeme J. Ackland, Jack Binns, Ross Howie +1
We investigate a range of possible materials containing the supermolecular form of hydrogen comprising 13 hydrogen molecules arranged in an icosahedral arrangement. This supermolec…
On the Reactivity of Hydrogen-Helium and Hydrogen-Nitrogen at High Pressures
Robin Turnbull, Mary-Ellen Donnelly, Mengnan Wang +6
Through a series of Raman spectroscopy studies, we investigate the behaviour of hydrogen-helium and hydrogen-nitrogen mixtures at high pressure across wide ranging concentrations.…
Structure and metallicity of phase V of hydrogen
Bartomeu Monserrat, Neil D. Drummond, Philip Dalladay-Simpson +5
A new phase V of hydrogen was recently claimed in experiments above 325 GPa and 300 K. Due to the extremely small sample size at such record pressures the measurements were limited…
Crossover between liquid-like and gas-like behaviour in CH4 at 400 K
D. Smith, M. A. Hakeem, P. Parisiades +10
We report experimental evidence for a crossover between a liquid-like state and a gas-like state in fluid methane (CH4). This crossover is observed in all of our experiments, up to…
High-pressure behavior of superconducting boron-doped diamond
Mahmoud Abdel-Hafiez, Dinesh Kumar, R. Thiyagarajan +8
This work investigates the high-pressure structure of freestanding superconducting ( = 4.3\,K) boron doped diamond (BDD) and how it affects the electronic and vibrational pr…
Comment on "Observation of the Wigner-Huntington transition to metallic hydrogen"
Xiao-Di Liu, Philip Dalladay-Simpson, Ross T. Howie +2
Dias and Silvera (Letters, p. 715, 2017) claim the observation of the Wigner-Huntington transition to metallic hydrogen at 495 GPa. We show that neither the claims of the record pr…
Bonding, structures, and band gap closure of hydrogen at high pressures
Alexander F. Goncharov, John S. Tse, Hui Wang +4
We have studied dense hydrogen and deuterium experimentally up to 320 GPa and using ab initio molecular dynamic (MD) simulations up to 370 GPa between 250 and 300 K. Raman and opti…