Liang Si

collaborators

4 papers

cond-mat.str-el2026

Pressure induced redistribution of oxygen hole states in La $_{4}$ Ni $_{3}$ O $_{10}$

Guiwen Jiang, Liang Si, George A. Sawatzky +1

Using density functional calculations and multi-orbital, multi-atom cluster exact diagonalization that includes local exchange and Coulomb interactions, we explored the local low-e…

cond-mat.str-el2026

Beyond the conventional Emery model: crucial role of long-range hopping for cuprate superconductivity

Eric Jacob, M. O. Malcolms, Viktor Christiansson +6

The Emery model is the quintessential model for cuprate superconductors. In his eponymous paper, Emery only considered the next-nearest-neighbor oxygen-copper hopping. Later, also…

cond-mat.supr-con2025

Persistent paramagnons in high-temperature infinite-layer nickelate superconductors

Yujie Yan, Ying Chan, Xunyang Hong +26

The recent discovery of high-temperature superconductivity in hole-doped SmNiO $_{2}$ , exhibiting the record-high transition temperature $T_{c}$ among infinite-layer (IL) nickelates, ha…

cond-mat.supr-con2025

Intertwined charge and spin instability of La $_{3}$ Ni $_{2}$ O $_{7}$

Guiwen Jiang, Chenye Qin, Kateryna Foyevtsova +4

Research on nickel-based superconductors has progressed from infinite-layer LaNiO $_{2}$ to finite-layer La $_{6}$ Ni $_{5}$ O $_{12}$ , and most recently to the Ruddlesden-Popper phase La$…

Pressure induced redistribution of oxygen hole states in La4​Ni3​O10​

Beyond the conventional Emery model: crucial role of long-range hopping for cuprate superconductivity

Persistent paramagnons in high-temperature infinite-layer nickelate superconductors

Intertwined charge and spin instability of La3​Ni2​O7​

Pressure induced redistribution of oxygen hole states in La $_{4}$ Ni $_{3}$ O $_{10}$

Intertwined charge and spin instability of La $_{3}$ Ni $_{2}$ O $_{7}$