5 papers
Electronic theory for scanning tunneling microscopy spectra in bilayer nickelate thin films
Marius Scholten, Steffen Bötzel, Frank Lechermann +2
Recent Scanning Tunneling Microscopy (STM) experiments measuring the superconducting gap features in thin films of superconducting bilayer nickelates La2PrNi2O7 at ambient pressure…
Structural symmetry effects on the competition of density waves and superconductivity in bilayer nickelates
Steffen Bötzel, Aiman Al-Eryani, Jun Zhan +4
We investigate the interplay between spin-density-wave (SDW) order and superconductivity in the bilayer nickelate LaNiO using the functional renormalization group~(fRG)…
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…
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…
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…