High-<i>T</i><sub>c</sub> superconductivity of polyhydride Rb<sub>2</sub>MgH<sub>18</sub> with a layered hydrogen structure at high pressure
Jianyun Wang, Ying Sun, Yulong Li, Shoutao Zhang, Bo Gao, Hanyu Liu
Abstract
A new high-pressure Rb 2 MgH 18 structure with an intriguing H layer was predicted. It shows superconductivity with calculated T c of 278 K at 235 GPa.
Topics & Concepts
Materials scienceHigh pressureSuperconductivityHydrogenCrystallographyCondensed matter physicsThermodynamicsPhysicsChemistryOrganic chemistryHydrogen Storage and MaterialsHigh-pressure geophysics and materialsSuperconductivity in MgB2 and Alloys