246 citations · 510 across the 18 of their papers we have counts for
13 papers · 1 filter
Structural diversity of molecular nitrogen on approach to polymeric states
Alexander F. Goncharov, Iskander G. Batyrev, Elena Bykova +7
Nitrogen represents an archetypal example of material exhibiting a pressure driven transformation from molecular to polymeric state. Detailed investigations of such transformations…
Assessing the stability fields of molecular and polymeric CO2
Alexander F. Goncharov, Elena Bykova, Maxim Bykov +4
We investigated the stability of polymeric CO2 over a wide range of pressures, temperatures, and chemical environments. We find that the I-42d polymeric structure, consisting of a…
Structure and vibrational properties of methane up to 71 GPa
Maxim Bykov, Elena Bykova, Chris J. Pickard +4
Single-crystal synchrotron X-ray diffraction, Raman spectroscopy, and first principles calculations have been used to identify the structure of the high-pressure (HP) phase of mole…
Synthesis and structure of carbon doped H3S compounds at high pressure
Alexander F. Goncharov, Elena Bykova, Maxim Bykov +4
Understanding of recently reported putative close-to-room-temperature superconductivity in C-S-H compounds at 267 GPa demands reproducible synthesis protocol as well as knowledge o…
Stabilization of hexazine rings in potassium polynitride at high pressure
Yu Wang, Maxim Bykov, Elena Bykova +6
Polynitrogen molecules represent the ultimate high energy-density materials as they have a huge potential chemical energy originating from their high enthalpy. However, synthesis a…
Novel rhenium carbides at 200 GPa
Saiana Khandarkhaeva, Timofey Fedotenko, Maxim Bykov +7
Laser heating of rhenium in a diamond anvil cell to 3000 K at about 200 GPa results in formation of two previously unknown rhenium carbides, hexagonal WC-type structured ReC and or…