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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…