1.6k citations · 6k across the 63 of their papers we have counts for
65 papers
X-ray Diffraction and Electrical Transport Imaging of Superconducting Superhydride (La,Y)H10
Abdul Haseeb Manayil Marathamkottil, Kui Wang, Nilesh P. Salke +9
We report the synthesis and characterization of (La0.9Y0.1)H10 superhydrides exhibiting coexisting cubic Fm-3m and hexagonal P63/mmc clathrate phases observed over the pressure ran…
Long-Term Stability of Superconducting Metal Superhydrides
Vasily S. Minkov, Mikhail A. Kuzovnikov, Panpan Kong +11
Zhou et al., in their recent publication (Nat. Commun. 16, 1135, 2025), reported the synthesis of lanthanum superhydride, LaHx (x = 10.2-11.1), by laser heating LaH3 with NH3BH3 at…
Observation of Body-Centered Cubic Iron above 200 Gigapascals
Zuzana Konopkova, Eric Edmund, Orianna B Ball +34
The crystallographic structure of iron under extreme conditions is a key benchmark for cutting-edge experimental and numerical methods. Moreover, it plays a crucial role in underst…
Crystalline forsterite to 160 GPa: the striking metastability of one of Universe's most abundant minerals
Barbara Lavina, Minta C. Akin, Yue Meng +1
Among Universe's most consequential events are large impacts generating rapidly-evolving extreme pressures and temperatures. Crystalline and amorphous forms of (Mg, Fe)2SiO4 are ab…
Low-symmetry polymorph of GaP upends bonding paradigms of metallic high-pressure III-V compounds
Barbara Lavina, Enrique Zanardi, Andrés Mujica +4
The pressure-induced polymorphism of binary octect compounds has long been considered a settled problem although the possible atomic disordering of some phases remains a puzzling o…
Stability of Hydrides in Sub-Neptune Exoplanets with Thick Hydrogen-Rich Atmospheres
Taehyun Kim, Xuehui Wei, Stella Chariton +4
Many sub-Neptune exoplanets have been believed to be composed of a thick hydrogen-dominated atmosphere and a high-temperature heavier-element-dominant core. From an assumption that…
Efficient Up-Conversion in CsPbBr3 Nanocrystals via Phonon-Driven Exciton-Polaron Formation
Abdullah S. Abbas, Beiye C. Li, Richard D. Schaller +4
Lead halide perovskite nanocrystals demonstrate efficient up-conversion, although the precise mechanism remains a subject of active research. This study utilizes steady-state and t…
Superconductivity above 180 K in Ca-Mg Ternary Superhydrides at Megabar Pressures
Weizhao Cai, Vasily S. Minkov, Ying Sun +8
The discovery of high-temperature superconductivity above 240 K in binary La-H and Y-H systems inspired further predictions of even higher transition temperatures in compounds such…
High-pressure Phase Transition of Olivine-type MgGeO to a Metastable Forsterite-III type Structure and their Equation of States
R. V. Divya, G. Kumar, R. E. Cohen +5
Germanates are often used as structural analogs of planetary silicates. We have explored the high-pressure phase relations in MgGeO using diamond anvil cell experiments com…
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…
Phase transition kinetics revealed by in situ X-ray diffraction in laser-heated dynamic diamond anvil cells
Matthew Ricks, Arianna E. Gleason, Francesca Miozzi +7
We report on a novel approach to dynamic compression of materials that bridges the gap between previous static- and dynamic- compression techniques, allowing to explore a wide rang…
Structural evolution of iodine on approach to the monatomic state
Elena Bykova, Iskander G. Batyrev, Maxim Bykov +4
We applied single-crystal X-ray diffraction and Raman spectroscopy in a diamond anvil cell up to 36 GPa and first principles theoretical calculations to study the molecular dissoci…
Nonlinearity of the post-spinel transition and its expression in slabs and plumes worldwide
Junjie Dong, Rebecca A. Fischer, Lars Stixrude +6
At the interface of Earth's upper and lower mantle, the post-spinel transition boundary controls the dynamics and morphologies of downwelling slabs and upwelling plumes, and its Cl…
Ultrastable Metallic Glass Nanoparticles with Size-Dependent Mechanical Properties
Abhinav Parakh, Mehrdad T. Kiani, Anabelle Colmenares +5
The atomistic structure of metallic glasses is closely related to properties such as strength and ductility. Here, Ni1-xBx metallic glass nanoparticles of two different sizes are c…
Comment on: Evidence and Stability Field of fcc Superionic Water Ice Using Static Compression
Alexander F. Goncharov, Vitali B. Prakapenka
Weck et al. (1) report on the existence and stability fields of two superionic (SI) phases of H2O ice at high P-T (P-T) conditions, which has been a topic of static and dynamic exp…
Universal diamond edge Raman scale to 0.5 terapascal: The implication to metallization of hydrogen
M. I. Eremets, V. S. Minkov, P. P. Kong +3
The recent progress in generating static pressures up to terapascal values opens opportunities for studying novel materials with unusual properties, such as metallization of hydrog…
Synthesis, structure and electric conductivity of higher hydrides of ytterbium at high pressure
Tomasz Jaronn, Jianjun Ying, Marek Tkacz +4
While most of the rare earth metals readily form trihydrides, due to increased stability of the filled 4f electronic shell for Yb(II), only YbH, formally corresponding to…
High pressure induced precipitation in Al7075 alloy
Abhinav Parakh, Andrew C. Lee, Stella Chariton +4
Precipitate-matrix interactions govern the mechanical behavior of precipitate strengthened Al-based alloys. These alloys find a wide range of applications ranging from aerospace to…
Iron-rich Fe-O compounds with closest-packed layers at core pressures
Jin Liu, Yang Sun, Chaojia Lv +7
Oxygen solubility in solid iron is extremely low, even at high pressures and temperatures. Thus far, no Fe-O compounds between Fe and FeO endmembers have been reported experimental…
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…
Ethane and methane at high pressures: structure and stability
Elissaios Stavrou, Alexander A. Maryewski, Sergey Lobanov +4
We have performed a combined experimental and theoretical study of ethane and methane at high pressures up to 120 GPa at 300 K using x-ray diffraction and Raman spectroscopy and th…
High-Pressure Na3(N2)4, Ca3(N2)4, Sr3(N2)4, and Ba(N2)3 Featuring Nitrogen Dimers with Non-Integer Charges and Anion-Driven Metallicity
Dominique Laniel, Bjoern Winkler, Timofey Fedotenko +12
Charged nitrogen dimers are ubiquitous in high-pressure binary metal-nitrogen systems. They are known to possess integer formal charges x varying from one through four. Here, we pr…
X-ray Diffraction and Equation of State of the C-S-H Room-Temperature Superconductor
Anmol Lamichhane, Ravhi Kumar, Muhtar Ahart +10
X-ray diffraction indicates that the structure of the recently discovered room temperature carbonaceous sulfur hydride (C-S-H) superconductor is derived from previously established…
Ultra-high pressure disordered eight-coordinated phase of MgGeO: Analogue for super-Earth mantles
Rajkrishna Dutta, Sally J. Tracy, Ronald E. Cohen +9
Mg2GeO4 is an analogue for the ultra-high pressure behavior of Mg2SiO4, so we have investigated magnesium germanate to 275 GPa and over 2000 K using a laser-heated diamond anvil ce…