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285 papers · 1 filter
Topological superconductivity in a Hubbard model for twisted bilayer cuprates
T. Vibert, D. Sénéchal
We investigate the emergence of nontrivial topology in a twisted cuprate bilayer described by the Hubbard model in the weak-interaction regime. Our results show that the topologica…
Dynamics of superconducting pairs in the two-dimensional Hubbard model
G. Sordi, E. M. O'Callaghan, C. Walsh +3
The frequency structure of the superconducting correlations in cuprates gives insights on the pairing mechanism. Here we present an exhaustive study of this problem in the two-dime…
Evidence for a field-induced Lifshitz transition in the Weyl semimetal CeAlSi
M. M. Piva, T. Helm, J. C. Souza +4
The Weyl semimetal CeAlSi crystallises in the noncentrosymmetric tetragonal space group and exhibits ferromagnetic order below 8 K, thereby breaking both spatial inversion…
The Frenkel line and the pseudogap: an analogy between classical and electronic fluids
J. Fournier, P. -O. Downey, O. Gingras +3
Asymptotically close to critical end-points of first-order transitions, maxima in thermodynamic quantities occur along a line called the Widom line, a concept first introduced in c…
First observation of quantum oscillations by transport measurements in semi-destructive pulsed magnetic fields up to 125 T
M. Massoudzadegan, S. Badoux, N. Bruyant +13
High magnetic fields have proven instrumental in exploring the physical properties of condensed matter, leading to groundbreaking discoveries such as the quantum Hall effect in 2D…
Charge gap and charge redistribution among copper and oxygen orbitals in the normal state of the Emery model
G. L. Reaney, N. Kowalski, A. -M. S. Tremblay +1
Unraveling the behavior of the electrons in the copper-oxygen planes of cuprate superconductors remains a challenge. Here we examine the electronic charge redistribution among plan…