Synthesis of Y${}_3$Fe${}_4$H${}_{20}$ as a new prototype structure for ternary superhydrides recoverable at ambient pressure

M. Caussé, M. Caussé, L. Toraille +2

Reaching pressures in the 100 GPa range enables the synthesis of hydrogen-rich compounds, with nontraditional H stoichiometries and H sublattices, called superhydrides. Record-brea…