Theory of Pressure Dependence of Superconductivity in Bilayer Nickelate
La$_3$Ni$_2$O$_{7}$
Theory of Pressure Dependence of Superconductivity in Bilayer Nickelate
La$_3$Ni$_2$O$_{7}$
The recent experiment shows the superconducting transition temperature in the Ruddlesden-Popper bilayer La$_3$Ni$_2$O$_{7}$ decreases monotonically with increasing pressure above 14 GPa. In order to unravel the underlying mechanism for this unusual dependence, we performed theoretical investigations by combining the density functional theory (DFT) and the unbiased functional renormalization group (FRG). …