228 citations · 464 across the 9 of their papers we have counts for
4 papers · 1 filter
Quantum Oscillations in the mixed state of d-wave superconductor
A. Melikyan, O. Vafek
We show that the low-energy density of quasiparticle states in the mixed state of ultra-clean d-wave superconductors is characterized by pronounced quantum oscillations in the regi…
Renormalization group approach to 2D Coulomb interacting Dirac fermions with random gauge potential
Oskar Vafek, Matthew J. Case
We argue that massless Dirac particles in two spatial dimensions with Coulomb repulsion and quenched random gauge field are described by a manifold of fixed points which can…
Coulomb interaction, ripples, and the minimal conductivity of graphene
Igor F. Herbut, Vladimir Juricic, Oskar Vafek
We argue that the unscreened Coulomb interaction in graphene provides a positive, universal, and logarithmic correction to scaling of zero-temperature conductivity with frequency.…
Anomalous thermodynamics of Coulomb interacting massless Dirac fermions in two spatial dimensions
Oskar Vafek
It is argued that the specific heat of massless Dirac fermions in 2 spatial dimensions interacting with 1/r Coulomb interactions is suppressed logarithmically relative to its n…