6 papers
Enhanced -wave superconductivity in electron-doped LaNiO
Xun Liu, Chao Deng, Wenfeng Wu +2
In cuprates, electron doping yields a much lower superconducting than hole doping. For recently discovered nickelate superconductors, the analogous doping strategies become m…
Perpendicular electric field induced competing - and -wave pairings in LaNiO thin film
Yongping Wei, Xun Liu, Fan Yang +1
Inspired by the possibility that superconducting properties may be altered by applying a perpendicular electric field in the Ruddlesden-Popper (RP) bilayer nickelate LaNiO$…
Interfacial Strain Modulated Correlated Plasmons in La1.85Sr0.15CuO4 and Their Role in High-temperature Superconductivity
Xiongfang Liu, Shengwei Zeng, Xun Liu +9
High-temperature superconductivity in cuprate materials remains a major challenge in physics due to the complexity of their strongly correlated electronic states. Interfacial strai…
Superconductivity in imbalanced bilayer Hubbard model: enhanced -wave and weakened -wave pairing
Ziying Jia, Xun Liu, Mi Jiang
We investigate the bilayer model with two layers of imbalanced densities coupled by the interlayer hybridization. Using the large-scale dynamical cluster quantum Monte Carlo simula…
Enhanced superconductivity via layer differentiation in trilayer Hubbard model
Xun Liu, Mi Jiang
Motivated by the highest superconducting transition temperature () in multilayer cuprates,we investigated the trilayer Hubbard model by adopting the large-scale dynamical clus…
Hybridization induced quantum phase transition in bilayer Hubbard model
Xun Liu, Mi Jiang
Inspired by the recent experimental report on the pressure induced superconductor-insulator transition in cuprate superconductors as well as the superconductivity of the Ruddlesden…