283 citations · 747 across the 16 of their papers we have counts for
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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…
Origin of Pressure-Induced Structural Instability in CsPbX Photovoltaic Perovskites
Sizhan Liu, Sandun Amarasinghe, Mo Li +6
Under external stimuli, lead halide perovskites exhibit large atomic fluctuations, impacting optical and electron transport properties that affect device performance in operational…
Synthesis of Ultra-Incompressible Carbon Nitrides Featuring Three-Dimensional Frameworks of CN4 Tetrahedra Recoverable at Ambient Conditions
Dominique Laniel, Florian Trybel, Andrey Aslandukov +22
More than thirty years ago, carbon nitrides featuring 3D frameworks of tetrahedral CN4 units were identified as one of the great aspirations of materials science, expected to have…
High-Pressure Synthesis of Seven Lanthanum Hydrides with a Significant Variability of Hydrogen Content
Dominique Laniel, Florian Trybel, Bjoern Winkler +12
The lanthanum-hydrogen system has attracted significant attention following the report of superconductivity in LaH10 at near-ambient temperatures and high pressures. Here, we prese…
Revealing Phosphorus Nitrides up to the Megabar Regime: Synthesis of alpha-P3N5, delta-P3N5 and PN2
Dominique Laniel, Florian Trybel, Adrien Neri +14
Non-metal nitrides are an exciting field of chemistry, featuring a significant number of compounds that can possess outstanding material properties. This characteristic relies on m…
High-Resolution In-situ Synchrotron X-ray Studies of Inorganic Perovskite CsPbBr: New Symmetry Assignments and Structural Phase Transitions
S. Liu, A. R. DeFilippo, M. Balasubramanian +12
Perovskite photovoltaic ABX systems are being studied due to their high energy-conversion efficiencies with current emphasis placed on pure inorganic systems. In this work, syn…
High-pressure polymeric nitrogen allotrope with the black phosphorus structure
Dominique Laniel, Bjoern Winkler, Timofey Fedotenko +6
Studies of polynitrogen phases are of great interest for fundamental science and for the design of novel high energy density materials. Laser heating of pure nitrogen at 140 GPa in…
Importance of correlation effects in hcp iron revealed by a pressure-induced electronic topological transition
K. Glazyrin, L. V. Pourovskii, L. Dubrovinsky +17
We discover that hcp phases of Fe and Fe0.9Ni0.1 undergo an electronic topological transition at pressures of about 40 GPa. This topological change of the Fermi surface manifests i…