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Pressure induced spin crossover in disordered α-LiFeO2
Samar Layek, Eran Greenberg, Weiming Xu +4
Structural, magnetic and electrical-transport properties of α-LiFeO2, crystallizing in the rock salt structure with random distribution of Li and Fe ions, have been studied by sync…
Superconductor-insulator transition in fcc-GeSb2Te4 at elevated pressures
Bar Hen, Samar Layek, Moshe Goldstein +8
We show that polycrystalline GeSb2Te4 in the fcc phase (f-GST), which is an insulator at low temperature at ambient pressure, becomes a superconductor at elevated pressures. Our st…
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…
Synthesis of Xenon and Iron/Nickel intermetallic compounds at Earth's core thermodynamic conditions
Elissaios Stavrou, Yansun Yao, Alexander F. Goncharov +5
Although Xe is known to form stable compounds with strong electronegative elements, evidence on the formation of stable compounds with electropositive elements, such as Fe and Ni,…
Raman spectroscopy and X-ray diffraction of sp3-CaCO3 at lower mantle pressures
Sergey S. Lobanov, Xiao Dong, Naira S. Martirosyan +8
The exceptional ability of carbon to form sp2 and sp3 bonding states leads to a great structural and chemical diversity of carbon-bearing phases at non-ambient conditions. Here we…
Theoretical and experimental evidence of a site-selective Mott transition in Fe2O3 under pressure
E. Greenberg, I. Leonov, S. Layek +6
We provide experimental and theoretical evidence for a novel type of pressure-induced insulator-metal transition characterized by site-selective delocalization of the electrons. Mö…