New paper announcement

We are pleased to announce that our joint theory–experiment work on superconducting hydrides has now been published in Physical Review B and selected as an Editors’ Suggestion:
Phys. Rev. B 112, 094513 (2025)

In this study, we reported the prediction and experimental realization of the ternary hydride Mg₄Pt₃H₆, a rare case of a hydride that is metallic, superconducting, and stable at ambient pressure.

Using ab initio crystal structure prediction, Mg₄Pt₃H₆ emerged as the only low-pressure thermodynamically stable phase in the Mg–Pt–H system. Guided by this prediction, the compound was synthesized at 8–25 GPa in laser-heated diamond anvil cells and its structure confirmed by synchrotron X-ray diffraction.

The material crystallizes in a body-centered cubic structure with Mg²⁺ ions and linear [PtH₂]²⁻ complexes. Unlike typical hydrido complexes, which tend to be insulating, Mg₄Pt₃H₆ is metallic. Transport measurements demonstrate a clear superconducting transition with T_c = 2.9 K at ambient pressure.

This publication highlights how theoretical design and high-pressure synthesis can come together to enable discovery of new superconductors that remain stable outside extreme conditions.

We look forward to further exploring complex hydrides as a promising platform for ambient-pressure superconductivity.