Superconducting Lithium Hydride in a Chemical Capacitor Setup: A Theoretical Study.

ABSTRACT: Metallization of the ionic hydride LiH has never been achieved experimentally, even under high external pressure. Herein, a novel "chemical capacitor" setup to facilitate its metallization under ambient pressure conditions is applied. The findings reveal that a single layer of this material can withstand doping levels up to an impressive 0.61 holes per H atom without structural collapse, as demonstrated in the ZrC | LiH | ZrC system. Additionally, the electron-phonon coupling strength (λ) reaches a remarkable value of 2.1 in the TiO | LiH | TiO system, indicative of the strong coupling regime. Superconductivity calculations further predict a maximum critical temperature ( Tc$T_{\text{c}}$ ) of 17.5 K for 0.31-hole-doped LiH with (LiBaF₃)₂ as surrounding support layers

SUBMITTER: Szudlarek PG 

PROVIDER: S-EPMC12225749 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature