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A comprehensive study of the velocity, momentum and position matrix elements for Bloch states using a local orbital basis
J. J. Esteve-Paredes, J. J. Palacios
We present a comprehensive study of the velocity operator, , when used in crystalline solids calculations. The…
Isolation and characterization of few-layer black phosphorus
Andres Castellanos-Gomez, Leonardo Vicarelli, Elsa Prada +10
Isolation and characterization of mechanically exfoliated black phosphorus flakes with a thickness down to two single-layers is presented. A modification of the mechanical exfoliat…
Anomalous exchange interaction between intrinsic spins in conducting graphene systems
H. Santos, David Soriano, J. J. Palacios
We address the nature and possible observable consequences of singular one-electron states that appear when strong defects are introduced in the metallic family of graphene, namely…
A critical analysis of vacancy-induced magnetism in mono and bilayer graphene
J. J. Palacios, F. Yndurain
The observation of intrinsic magnetic order in graphene and graphene-based materials relies on the formation of magnetic moments and a sufficiently strong mutual interaction. Vacan…
Skyrme crystal or Skyrme liquid?
B. Paredes, J. J. Palacios
We address the quantum melting phase transition of the Skyrme crystal. Based on generic sum rules for two-dimensional, isotropic electron quantum liquids in the lowest Landau level…
Magnons and skyrmions in fractional Hall ferromagnets
A. H. MacDonald, J. J. Palacios
Recent experiments have established a qualitative difference between the magnetization temperature-dependences of quantum Hall ferromagnets at integer and fractional filling…
Signature of Quantum Hall Effect Skyrmions in Tunneling: A Theoretical Study
J. J. Palacios, H. A. Fertig
We present a theoretical study of the tunneling characteristic between two parallel two-dimensional electron gases in a perpendicular magnetic field when both are near fillin…