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cond-mat.str-el2026
Co-operating multiorbital and nonlocal correlations in bilayer nickelate
Evgeny A. Stepanov, Steffen Bötzel, Steffen Bötzel +2
The interplay of multiorbital physics and nonlocal self-energy effects is studied within an effective three-orbital model for the high-pressure normal state of superconducting bila…
cond-mat.str-el2025
Interplay of orbital-selective Mott criticality and flat-band physics in LaNiO
Frank Lechermann, Steffen Bötzel, Ilya M. Eremin
Superconductivity in nickelates apparently takes place in two different Ni oxidation regimes, namely either for infinite-layer-type compounds close to Ni, or for Ruddlesden-P…
cond-mat.str-el2025
Low-energy perspective of interacting electrons in the normal state of superconducting bilayer nickelate
Frank Lechermann, Steffen Bötzel, Ilya M. Eremin
Developing a low-energy model is essential for understanding unconventional superconductivity in bilayer nickelate LaNiO. Here, we analyze distinct low-energy scenarios…