117 citations · 445 across the 11 of their papers we have counts for
10 papers
Electronic properties of single-layer antimony: Tight-binding model, spin-orbit coupling and the strength of effective Coulomb interactions
A. N. Rudenko, M. I. Katsnelson, R. Roldán
The electronic properties of single-layer antimony are studied by a combination of first-principles and tight-binding methods. The band structure obtained from relativistic density…
Momentum dependence of spin-orbit interaction effects in single-layer and multi-layer transition metal dichalcogenides
R. Roldán, M. P. López-Sancho, E. Cappelluti +3
One of the main characteristics of the new family of two-dimensional crystals of semiconducting transition metal dichalcogenides (TMD) is the strong spin-orbit interaction, which m…
Collisionless Hydrodynamics of Doped Graphene in a Magnetic Field
R. Roldán, J. -N. Fuchs, M. O. Goerbig
The electrodynamics of a two-dimensional gas of massless fermions in graphene is studied by a collisionless hydrodynamic approach. A low-energy dispersion relation for the collecti…
Effects of structural and chemical disorders on the visible/UV spectra of carbonaceous interstellar grains
R. J. Papoular, S. Yuan, R. Roldan +2
The recent spectacular progress in the experimental and theoretical understanding of graphene, the basic constituent of graphite, is applied here to compute, from first principles,…
Interactions and superconductivity in heavily doped MoS2
R. Roldan, E. Cappelluti, F. Guinea
We analyze the microscopic origin and the physical properties of the superconducting phase recently observed in MoS. We show how the combination of the valley structure of the…
Spin-density-wave instability in graphene doped near the van Hove singularity
D. Makogon, R. van Gelderen, R. Roldán +1
We study the instability of the metallic state towards the formation of a new ground state in graphene doped near the van Hove singularity. The system is described by the Hubbard m…