4 papers
Two New Molecular Nitrogen Phases near Megabar Pressures
Alexander F. Goncharov, Elena Bykova, Iskander Batyrev +7
Molecular nitrogen exhibits remarkable structural diversity near the polymeric transition, where multiple phases are metastable. Here, we report two new molecular phases. The first…
Hydrogen-rich hydrate at high pressures up to 104 GPa
Alexander F. Goncharov, Elena Bykova, Iskander Batyrev +10
Gas hydrates are considered fundamental building blocks of giant icy planets like Neptune and similar exoplanets. The existence of these materials in the interiors of giant icy pla…
Polymorphism of monatomic iodine
Alexander F. Goncharov, Huawei Chen, Iskander G. Batyrev +8
We applied synchrotron single-crystal X-ray diffraction in a diamond anvil cell at 48-51 GPa and first-principles theoretical calculations to study the crystal structure of solid a…
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…