4 papers
From high- to low-: Multi-orbital effects in transition metal oxides
Michael Klett, Tilman Schwemmer, Sebastian Wolf +8
Despite the structural resemblance of certain cuprate and nickelate parent compounds there is a striking spread of among such transition metal oxide superconductors. We adopt…
Slave-Boson analysis of the 2D Hubbard model
David Riegler, Michael Klett, Titus Neupert +2
We present a comprehensive study of the 2D one-band Hubbard model applying the spin rotation invariant slave-boson method. We utilize a spiral magnetic mean field and fluctuations…
Topology and Magnetism in the Kondo Insulator Phase Diagram
Michael Klett, Seulgi Ok, David Riegler +3
Topological Kondo insulators are a rare example of an interaction-enabled topological phase of matter in three-dimensional crystals - making them an intriguing but also hard case f…
Harmonic Fingerprint of Unconventional Superconductivity in Twisted Bilayer Graphene
Xianxin Wu, Werner Hanke, Mario Fink +2
Microscopic details such as interactions and Fermiology determine the structure of superconducting pairing beyond the spatial symmetry classification along irreducible point group…