9 citations · 18 across the 4 of their papers we have counts for
4 papers
Relevant perturbations at the spin quantum Hall transition
S. Bhardwaj, I. A. Gruzberg, V. Kagalovsky
We study relevant perturbations at the spin quantum Hall critical point using a network model formulation. The model has been previously mapped to classical percolation on a square…
Supersymmetry approach to delocalization transitions in a network model of the weak field quantum Hall effect and related models
S. Bhardwaj, V. V. Mkhitaryan, I. A. Gruzberg
We consider a recently proposed network model of the integer quantum Hall (IQH) effect in a weak magnetic field. Using a supersymmetry approach, we reformulate the network model in…
Tail states in clean superconductors with magnetic impurities
A. V. Shytov, I. Vekhter, I. A. Gruzberg +1
We analyse the behavior of the density of states in a singlet s-wave superconductor with weak magnetic impurities in the clean limit. By using the method of optimal fluctuation and…
Comment on ``Density of States of Disordered Two-Dimensional Crystals with Half-Filled Band''
Ilya A. Gruzberg, P. J. Hirschfeld, A. V. Shytov
In a recent letter (PRL 84, 3930 (2000)) Nakhmedov et al. claimed that the Van Hove singularity at in the density of states (DoS) of the two-dimensional crystal with half-fil…