14 papers
Manifest charge-transfer physics in T-LaNiO
Wiktoria Lewandowski, Steffen Bötzel, Ilya M. Eremin +1
The LaNiO compound stabilizes in nature in the so-called T structure with octahedral oxygen coordination of the Ni site. Motivated by a similarly existing polymorph for La$…
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…
Density waves in low-pressure bilayer nickelates
Lauro B. Braz, Steffen Bötzel, Steffen Bötzel +5
The low-pressure phase diagram of LaNiO provides an important reference for understanding its pressure-induced high-temperature superconductivity. While the spin-densit…
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, Ilya M. Eremin +1
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…
Enhanced Superconductivity in Proximity to Peaks in Densities of States
Joshua Althüser, Ilya M. Eremin, Götz S. Uhrig
For the BCS theory of superconductivity, the electron-phonon interaction is transformed to an attractive electron-electron interaction in the vicinity of the Fermi energy only. At…