36 citations · 103 across the 10 of their papers we have counts for
12 papers
Intrinsic spin-orbit coupling in graphene stacks
Guillermo Parra-Martinez, Alejandro Jimeno-Pozo, Ady Stern +2
The effect of spin-orbit coupling (SOC) in monolayer graphene has been thoroughly studied in the past. Its impact is commonly disregarded since the electronic structure of graphene…
The First Magic Angle Beyond the Chiral Limit in Twisted Bilayer Graphene
Leonardo A. Navarro-Labastida, Pierre A. Pantaleon, Francisco Guinea +1
We develop a squared-Hamiltonian description of twisted bilayer graphene beyond the chiral limit to explain why the first magic angle remains robust under lattice relaxation, while…
Electronic structure and optical signatures of highly-doped graphene
Saúl Antonio Herrera-González, Guillermo Parra-Martínez, Francisco Guinea +3
Heavily doping graphene by intercalation can raise its Fermi level near an extended van Hove singularity, potentially inducing correlated electronic phases. Intercalation also modi…
Nematic and partially polarized phases in rhombohedral graphene with varying number of layers: An extensive Hartree-Fock Study
Guillermo Parra-Martínez, Alejandro Jimeno-Pozo, Jose Angel Silva-Guillén +1
Rhombohedral graphene systems with different number of layers feature an abundance of correlated phases and superconducting states in experimental measurements with different dopin…
Topological phase diagram of twisted bilayer graphene as a function of the twist angle
Leonardo A. Navarro-Labastida, Pierre A. Pantaleon, Francisco Guinea +1
Twisted bilayer graphene (TBG) hosts a rich landscape of electronic phases arising from the interplay between strong electron-electron interactions and nontrivial band topology. Wh…
Interaction-driven charge textures and unconventional superconductivity in strained monolayer graphene
Elias Andrade, Alejandro Jimeno-Pozo, Pierre A. Pantaleon +2
Two-dimensional systems with flat bands support correlated phases such as superconductivity. While twisted moiré systems, like twisted bilayer graphene, have revealed such states,…
Band Renormalization, Quarter Metals, and Chiral Superconductivity in Rhombohedral Tetralayer Graphene
Guillermo Parra-Martinez, Alejandro Jimeno-Pozo, Vo Tien Phong +7
Recently, exotic superconductivity emerging from a spin-and-valley-polarized metallic phase has been discovered in rhombohedral tetralayer graphene. To explain this observation, we…
Double-edged Role of Interactions in Superconducting Twisted Bilayer Graphene
Xueshi Gao, Alejandro Jimeno-Pozo, Pierre A. Pantaleon +9
For the unconventional superconducting phases in moire materials, a critical question is the role played by electronic interactions in the formation of Cooper pairs. In twisted bil…
Electronic Structure and Kohn-Luttinger Superconductivity of Heavily-Doped Single-Layer Graphene
Saul Herrera, Guillermo Parra-Martinez, Philipp Rosenzweig +8
The existence of superconductivity (SC) in graphene appears to be established in both twisted and non-twisted multilayers. However, whether their building block, single-layer graph…
Evolution of Superconductivity in Twisted Graphene Multilayers
Min Long, Alejandro Jimeno-Pozo, Hector Sainz-Cruz +2
The group of moiré graphene superconductors keeps growing, and by now it contains twisted graphene multilayers and twisted double bilayers. We analyze the contribution of long rang…
Pseudomagnetic fields in fully relaxed twisted bilayer and trilayer graphene
Adrián Ceferino, Francisco Guinea
We present simple models to describe the in-plane and the out-of-plane lattice relaxation in twisted bilayer and symmetrically twisted trilayer graphene. Analytical results and ser…
Anisotropic features in the electronic structure of the two-dimensional transition metal trichalcogenide TiS: electron doping and plasmons
J. A. Silva-Guillén, E. Canadell, P. Ordejón +2
Analysis of the band structure of TiS single-layers suggests the possibility of changing their physical behaviour by injecting electron carriers. The anisotropy of the valence…