7 papers
Electronic structure and optical signatures of highly-doped graphene
Saúl Antonio Herrera-González, Guillermo Parra-MartÃnez, 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-MartÃnez, 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…
Electrostatic Charge Fractionalization 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 and charge fractionalization. While twisted moire systems like twisted bilayer graphene…
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…
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…