Effective model and $s_\pm$-wave superconductivity in trilayer nickelate
La$_4$Ni$_3$O$_{10}$
Effective model and $s_\pm$-wave superconductivity in trilayer nickelate
La$_4$Ni$_3$O$_{10}$
The recent discovery of bulk superconductivity in trilayer nickelate La$_4$Ni$_3$O$_{10}$ with the critical temperature $T_c$ near $30$K under high pressure is attracting a new wave of research interest, after the breakthrough of bilayer La$_3$Ni$_2$O$_7$ with $T_c$ near $80$K. The similarities and differences of electronic structure and superconducting mechanism in these …