25 citations · 81 across the 10 of their papers we have counts for
4 papers · 1 filter
Electronic correlations, layer distinction, and electron doping in the alternating single-layer trilayer LaNiO polymorph
Harrison LaBollita, Soumen Bag, Jesse Kapeghian +1
We employ a density-functional theory plus dynamical mean-field theory framework to investigate the correlated electronic structure of the alternating single-layer trilayer (1313)…
Correlation driven metallic and half-metallic phases in a band insulator
Soumen Bag, Arti Garg, H. R. Krishnamurthy
We demonstrate, using dynamical mean-field theory with the hybridization expansion continuous time quantum montecarlo impurity solver, a rich phase diagram with {\em correlation dr…
Is there a superconducting phase in the half-filled ionic Hubbard model ?
Anwesha Chattopadhyay, Soumen Bag, H. R. Krishnamurthy +1
We investigate the ionic Hubbard model (IHM) at half-filling in the limit of strong correlations and large ionic potential. The low energy effective Hamiltonian in this limit, obta…
Phase Diagram of the Half-Filled Ionic Hubbard Model
Soumen Bag, Arti Garg, H. R. Krishnamurthy
We study the phase diagram of the ionic Hubbard model (IHM) at half-filling using dynamical mean field theory (DMFT), with two impurity solvers, namely, iterated perturbation theor…