798 citations · 2.5k across the 31 of their papers we have counts for
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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…
Aromatic Hexazine [N6]4- Anion Revealed in the Complex Structure of the High-Pressure Potassium Nitride K9N56
Dominique Laniel, Florian Trybel, Yuqing Yin +13
Recent high-pressure synthesis of pentazolates and subsequent stabilization of the aromatic [N5]- anion at atmospheric pressure had an immense impact on nitrogen chemistry. Here, w…
High-pressure synthesis of Dirac materials: layered van der Waals bonded BeN polymorph
Maxim Bykov, Timofey Fedotenko, Stella Chariton +17
High pressure chemistry is known to inspire the creation of unexpected new classes of compounds with exceptional properties. Here we report the synthesis at ~90 GPa of novel beryll…
Metallic Hydrogen Sublattice and Proton Mobility in Copper Hydride at High Pressure
Thomas Meier, Florian Trybel, Giacomo Criniti +9
Atomic and electronic structures of Cu2H and CuH have been investigated by high pressure NMR spectroscopy, X-ray diffraction and ab-initio calculations. Metallic Cu2H was synthesiz…
High-pressure synthesis of ultraincompressible hard rhenium nitride pernitride Re(N)N stable at ambient conditions
Maxim Bykov, Stella Chariton, Hongzhan Fei +17
Here we report the synthesis of metallic, ultraincompressible (bulk modulus = 428(10) GPa) and very hard (nanoindentation hardness 36.7(8) GPa) rhenium (V) nitride pernitri…
Pressure induced Hydrogen-Hydrogen interaction in metallic FeH revealed by NMR
Thomas Meier, Florian Trybel, Saiana Khandarkhaeva +8
Knowledge of the behavior of hydrogen in metal hydrides is the key for understanding their electronic properties. So far, no experimental methods exist to access these properties b…
High-pressure behavior of methylammonium lead iodide (MAPbI3) hybrid perovskite
Francesco Capitani, Carlo Marini, Simone Caramazza +6
In this paper we provide an accurate high-pressure structural and optical study of MAPbI3 hybrid perovskite. Structural data show the presence of a phase transition towards an orth…
Structural transformations of Li2C2 at high pressures
Ilias Efthimiopoulos, Daryn E. Benson, Sumit Konar +9
Structural changes of Li2C2 under pressure were studied by synchrotron x-ray diffraction in a diamond anvil cell under hydrostatic conditions and by using evolutionary search metho…
Superconductivity in Weyl Semimetal Candidate MoTe2
Yanpeng Qi, Pavel G. Naumov, Mazhar N. Ali +19
In recent years, layered transition-metal dichalcogenides (TMDs) have attracted considerable attention because of their rich physics; for example, these materials exhibit supercond…
Observation of the Sb2S3-type post-post-GdFeO3-perovskite: A model structure for high density ABX3 and A2X3 phases
Wilson A. Crichton, Fabian L. M. Bernal, Jérémy Guignard +2
Ten years have passed since the description of the perovskite to post-perovskite transition in MgSiO3 and its' impact on the mineralogy and rheology of the D" region at the base of…
Jahn-Teller, polarity and insulator-to-metal transition in BiMnO3 at high pressure
Mael Guennou, Pierre Bouvier, Pierre Toulemonde +5
The interaction of coexisting structural instabilities in multiferroic materials gives rise to intriguing coupling phenomena and extraordinarily rich phase diagrams, both in bulk m…
Discovery of a superhard iron tetraboride superconductor
Huiyang Gou, Natalia Dubrovinskaia, Elena Bykova +11
Single crystals of novel orthorhombic (space group Pnnm) iron tetraboride FeB4 were synthesised at pressures above 8 GPa and high temperatures. Magnetic susceptibility measurements…
Symmetry preserving lattice collapse in tetragonal SrFe_(2-x)Ru_xAs_2 (x = 0, 0.2) -- a combined experimental and theoretical study
Deepa Kasinathan, Miriam Schmitt, Klaus Koepernik +8
In a joint experimental and theoretical study, we investigate the isostructural collapse from the ambient pressure tetragonal phase to a collapsed tetragonal phase for non-supercon…
Plasmons in Sodium under Pressure: Increasing Departure from Nearly-Free-Electron Behavior
I. Loa, K. Syassen, G. Monaco +3
We have measured plasmon energies in Na under high pressure up to 43 GPa using inelastic x-ray scattering (IXS). The momentum-resolved results show clear deviations, growing with i…
Formation of transition metal hydrides at high pressures
Olga Degtyareva, John E. Proctor, Christophe Guillaume +2
Silane (SiH4) is found to (partially) decompose at pressures above 50 GPa at room temperature into pure Si and H2. The released hydrogen reacts with surrounding metals in the diamo…
High-pressure study of X-ray diffuse scattering in ferroelectric perovskites
Sylvain Ravy, Jean-Paul Itie, Alain Polian +1
We present a high-pressure x-ray diffuse scattering study of the ABO ferroelectric perovskites BaTiO_3 and KNbO_3. The well-known diffuse lines are observed in all the phases s…
Crystal structure of solid Oxygen at high pressure and low temperature
Federico A. Gorelli, Mario Santoro, Lorenzo Ulivi +1
Results of X-ray diffraction experiments on solid oxygen at low temperature and at pressures up to 10 GPa are presented.A careful sample preparation and annealing around 240 K allo…