267 citations · 714 across the 16 of their papers we have counts for
4 papers · 1 filter
Temperature-induced spontaneous time-reversal symmetry breaking on the honeycomb lattice
Wei Liu, Alexander Punnoose
Phase transitions involving spontaneous time-reversal symmetry breaking are studied on the honeycomb lattice at finite hole-doping with next-nearest-neighbor repulsion. We derive a…
Excitonic instabilities and spontaneous time-reversal symmetry breaking on the honeycomb lattice
Wei Liu, Alexander Punnoose
We elucidate the close relationship between spontaneous time-reversal symmetry breaking and the physics of excitonic instabilities in strongly correlated multiband systems. The und…
Flow diagram of the metal-insulator transition in two dimensions
S. Anissimova, S. V. Kravchenko, A. Punnoose +2
The discovery of the metal-insulator transition (MIT) in two-dimensional (2D) electron systems challenged the veracity of one of the most influential conjectures in the physics of…
Valley Splitting in Si-Inversion Layers at Low Magnetic Fields
V. M. Pudalov, A. Punnoose, G. Brunthaler +2
We report novel manifestation of the valley splitting for the two valley electron system in (100) Si-inversion layers at low carrier density. We found that valley splitting causes…