Chemical physics of superconductivity in layered yttrium carbide halides from first principles

Ryosuke Akashi, Ryotaro Arita, Chao Zhang +2

We perform a thorough first-principles study on superconductivity in yttrium carbide halide Y${}_2$$X_2$C${}_2$ ($X$=Cl, Br, I) whose maximum transition temperature ($T_{\mathrm{c}}$) amoun…