Role of anharmonic correction in superconducting phase of two-dimensional alloy Al 0.75 Si 0.25 B 2 : insight from ab initio anisotropic Migdal–Eliashberg theory

Comparison between the harmonic and anharmonic Eliashberg functions, together with the corresponding integrated EPC values for Al 0.75 Si 0.25 B 2 , highlighting the effect of anharmonicity on the evolution of EPC.