Phase Diagram, $d$-Wave Superconductivity, and Pseudogap of the $t$-$t^{\prime }$-$J$ Model at Finite Temperature

Dai-Wei Qu, Qiaoyi Li, Shou-Shu Gong +3

Recently, robust $d$-wave superconductive (SC) order has been unveiled in the ground state of the 2D $t$-$t^{\prime }$-$J$ model -- with both nearest-neighbor ($t$) and next-nearest-neighbo…