Superconductivity in quasi-one-dimensional K${}_2$Cr${}_3$As${}_3$ with significant electron correlations

Jin-Ke Bao, Ji-Yong Liu, Cong-Wei Ma +9

We report the discovery of bulk superconductivity (SC) at 6.1 K in a quasi-one-dimensional (Q1D) chromium pnictide K${}_2$Cr${}_3$As${}_3$ which contains [(Cr${}_3$As${}_3$)${}^{2-}$]$_{\infty…