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Sr-Doped Molecular Hydrogen: Synthesis and Properties of SrH
Dmitrii V. Semenok, Wuhao Chen, Xiaoli Huang +9
Recently, several research groups announced reaching the point of metallization of hydrogen above 400 GPa. Following the mainstream of extensive investigations of compressed polyhy…
Crystal structure prediction at finite temperatures
Ivan A. Kruglov, Alexey V. Yanilkin, Yana Propad +1
Crystal structure prediction is a central problem of theoretical crystallography and materials science, which until mid-2000s was considered intractable. Several methods, based on…
Synthesis of clathrate cerium superhydride CeH9 below 100 GPa with atomic hydrogen sublattice
Nilesh P. Salke, M. Mahdi Davari Esfahani, Youjun Zhang +7
Hydrogen-rich superhydrides are believed to be very promising high-Tc superconductors as they are expected to mimic characteristics of metallic hydrogen. Recent experiments discove…
Boron monosulfide: equation of state and pressure-induced phase transition
Kirill A. Cherednichenko, Ivan A. Kruglov, Artem R. Oganov +3
Quasi-hydrostatic compression of rhombohedral boron monosulfide (r-BS) has been studied up to 50 GPa at room temperature using diamond-anvil cells and angle-dispersive synchrotron…
Uranium polyhydrides at moderate pressures: prediction, synthesis, and expected superconductivity
Ivan A. Kruglov, Alexander G. Kvashnin, Alexander F. Goncharov +7
Hydrogen-rich hydrides attract great attention due to recent theoretical (1) and then experimental discovery of record high-temperature superconductivity in H3S (Tc = 203 K at 155…
Hydrogen sulfide at high pressure: change in stoichiometry
Alexander F. Goncharov, Sergey Lobanov, Ivan Kruglov +5
Hydrogen-sulfide (H2S) was studied by x-ray synchrotron diffraction (XRD) and Raman spectroscopy up to 150 GPa at 180-295 K and by quantum-mechanical variable-composition evolution…