Enhanced Superconductivity and Critical Current Density Due to the Interaction of InSe₂ Bonded Layer in ...

Abstract

Superconductivity was discovered in (InSe₂)_xNbSe₂. The materials are crystallized in a unique layered structure where bonded InSe₂ layers are intercalated into the van der Waals gaps of 2H-phase NbSe₂. The (InSe₂)_0.12NbSe₂ superconductor exhibits a superconducting transition at 11.6 K and critical current density of 8.2 × 10⁵ A/cm². Both values are the highest among all transition metal dichalcogenide superconductors at ambient pressure. The present finding provides an ideal material platform for further investigation of superconducting-related phenomena in transition metal dichalcogenides.

Link to the article: https://pubs.acs.org/doi/10.1021/jacs.3c09756