3 papers
cond-mat.str-el2026
Altermagnons at the metal-insulator transition
Jonas Issing, Matteo Dürrnagel, Sarbajit Mazumdar +7
By means of slave-boson theory for the Hubbard model on the checkerboard lattice, we calculate dynamical altermagnetic spin susceptibilities from the metallic to the Mott-insulatin…
cond-mat.str-el2025
Topologically enabled superconductivity: possible implications for rhombohedral graphene
Francesca Paoletti, Daniele Guerci, Giorgio Sangiovanni +2
We present a topological mechanism for superconductivity emerging from Chern-2 insulators. While, naively, time-reversal symmetry breaking is expected to prevent superconductivity,…
cond-mat.str-el2024
Electrical Transport in the Hatsugai-Kohmoto Model
Daniele Guerci, Giorgio Sangiovanni, Andrew J. Millis +1
We show that in models with the Hatsugai-Kohmoto type of interaction that is local in momentum space thus infinite-range in real space, Kubo formulas neither reproduce the correct…