271 citations · 619 across the 19 of their papers we have counts for
19 papers
Ultra-fast yttrium hydride chemistry at high pressures via non-equilibrium states induced by x-ray free electron laser
Emily Siska, G. Alexander Smith, Sergio Villa-Cortes +24
Controlling the formation and stoichiometric content of desired phases of materials has become a central interest for the study of a variety of fields, notably high temperature sup…
The Isotope Effect and Critical Magnetic Fields of Superconducting YH: A Migdal-Eliashberg Theory Approach
S. Villa-Cortés, O. De la Peña-Seaman, Keith V. Lawler +1
The emergence of near-ambient temperature superconductivity under pressure in the metal hydride systems has motivated a desire to further understand such remarkable properties, spe…
Observation of Conventional Near Room Temperature Superconductivity in Carbonaceous Sulfur Hydride
Hiranya Pasan, Elliot Snider, Sasanka Munasinghe +21
The phenomenon of high temperature superconductivity, approaching room temperature, has been realized in a number of hydrogen-dominant alloy systems under high pressure conditions1…
Machine learning using structural representations for discovery of high temperature superconductors
Lazar Novakovic, Ashkan Salamat, Keith V. Lawler
The expansiveness of compositional phase space is too vast to fully search using current theoretical tools for many emergent problems in condensed matter physics. The reliance on a…
Metallic Hydrogen: Experiments on Metastability
W. Ferreira, M. Moller, K. Linsuain +4
Molecular hydrogen was pressurized in a diamond anvil cell at temperatures between 5 and 83 K. At a sufficiently high pressure, estimated to be between 477 to 491 GPa, hydrogen bec…
Gearbox designs for the diamond anvil cell: Applications to hard-to-reach-places
Paul B. Ellison, Dean Smith, Stanislav Sinogeikin +1
The uniaxial compression design of the diamond anvil high pressure cell (DAC) necessitates the use of a soft pressure-transmitting medium (PTM) to minimize non-hydrostatic effects…
Understanding Hydrogen Rich Superconductors: Importance of Effective Mass and Dirty Limit
Andrew L. Cornelius, Keith V. Lawler, Ashkan Salamat
A class of hydrogen-rich (H-rich) systems, consistent with Type II superconductivity, are known to have very high superconducting transition temperatures Tc and upper critical magn…
Reply to "Comment on Nature 586, 373 (2020) by E. Snider et al."
Ranga P. Dias, Ashkan Salamat
In this paper, we respond to a recent criticism of our work on CSH, (1,2) raised by Hirsch and van der Marel on the arXiv (3). We point out that their non-peer reviewed critique (3…
Lower pressure phases and metastable states of superconducting photo-induced carbonaceous sulfur hydride
G. Alexander Smith, Ines E. Collings, Elliot Snider +9
Room-temperature superconductivity was recently discovered in carbonaceous sulfur hydride (C-S-H) close to 3\,Mbar. We report significant differences in the superconducting respons…
Standard Superconductivity in Carbonaceous Sulfur Hydride
Ranga P. Dias, Ashkan Salamat
The recently discovered room temperature superconductivity (RTSC) in carbonaceous sulfur hydride reveals the promise of a new superconducting technological era. Since the publicati…
Decoupling lattice and magnetic instabilities in frustrated CuMnO
Keith V. Lawler, Dean Smith, Shaun R. Evans +8
The MnO delafossites (=Na, Cu), are model frustrated antiferromagnets, with triangular layers of Mn~spins. At low temperatures (=65 K), a $C2/m \rightarro…
Implications of an improved water equation of state for water-rich planets
Chenliang Huang, David R. Rice, Zachary M. Grande +6
Water (HO), in all forms, is an important constituent in planetary bodies, controlling habitability and influencing geological activity. Under conditions found in the interio…
Superconductivity to 262 kelvin via catalyzed hydrogenation of yttrium at high pressures
Elliot Snider, Nathan Dasenbrock-Gammon, Raymond McBride +6
Room temperature superconductivity has been achieved under high pressure in an organically derived carbonaceous sulfur hydride with a critical superconducting transition temperatur…
Bond strengthening in dense H2O and implications to planetary composition
Zachary M. Grande, Chenliang Huang, Dean Smith +5
H2O is an important constituent in planetary bodies, controlling habitability and, in geologically-active bodies, plate tectonics. At pressures within the interior of many planets,…
Post-aragonite phases of CaCO at lower mantle pressures
Dean Smith, Keith V. Lawler, Miguel Martinez-Canales +7
The stability, structure and properties of carbonate minerals at lower mantle conditions has significant impact on our understanding of the global carbon cycle and the composition…
Expanded Comment on: Optical Properties of Fluid Hydrogen at the Transition to a Conducting State
Isaac F. Silvera, Rachel Husband, Ashkan Salamat +1
We comment on a recent paper published by McWilliams et al claiming that high-pressure/high-temperature hydrogen is a semi-conductor or semi-metal, in conflict with all earlier mea…
Carbon Nitride Frameworks and Dense Crystalline Polymorphs
Chris J. Pickard, Ashkan Salamat, Michael J. Bojdys +2
We used ab initio random structure searching (AIRSS) to investigate polymorphism in C3N4 carbon nitride as a function of pressure. Our calculations reveal new framework structures,…
A First-order Phase Transition to Metallic Hydrogen
Mohamed Zaghoo, Ashkan Salamat, Isaac F. Silvera
The insulator-metal transition in hydrogen is one of the most outstanding problems in condensed matter physics. The high-pressure metallic phase is now predicted to be liquid atomi…
Giant pressure-induced volume collapse in the pyrite mineral MnS2
Simon A. J. Kimber, Ashkan Salamat, Shaun R. Evans +8
Dramatic volume collapses under pressure are fundamental to geochemistry and of increasing importance to fields as diverse as hydrogen storage and high-temperature superconductivit…