67 citations · 308 across the 12 of their papers we have counts for
8 papers · 1 filter
Electronic structure, magnetic properties and pairing tendencies of the copper-based honeycomb lattice NaCuTeO
Ling-Fang Lin, Rahul Soni, Yang Zhang +6
Spin- chains with alternating antiferromagnetic and ferromagnetic couplings have attracted considerable interest due to the topological character of their spin excitations. He…
Range of biquadratic and triquadratic Heisenberg effective couplings deduced from multiorbital Hubbard models
Rahul Soni, Nitin Kaushal, Cengiz Şen +3
We studied a multi-orbital Hubbard model at half-filling for two and three orbitals per site on a two-site cluster via full exact diagonalization, in a wide range for the onsite re…
Multitude of Topological Phase Transitions in Bipartite Dice and Lieb Lattices with Interacting Electrons and Rashba Coupling
Rahul Soni, Amit Bikram Sanyal, Nitin Kaushal +3
We report the results of a Hartree-Fock study applied to interacting electrons moving in two different bipartite lattices: the dice and the Lieb lattices, at half-filling. Both lat…
Intertwined charge, spin, and pairing orders in doped iron ladders
Bradraj Pandey, Rahul Soni, Ling-Fang Lin +2
Motivated by recent experimental progress on iron-based ladder compounds, we study the doped two-orbital Hubbard model for the two-leg ladder BaFeS. The model is constructe…
Origin of the Magnetic and Orbital ordering in -SrCrO
Bradraj Pandey, Yang Zhang, Nitin Kaushal +5
Motivated by recent experimental progress in transition metal oxides with the KNiF structure, we investigate the magnetic and orbital ordering in -SrCrO. Using f…
Prediction of exotic magnetic states in the alkali metal quasi-one-dimensional iron selenide compound NaFeSe
Bradraj Pandey, Ling-Fang Lin, Rahul Soni +4
The magnetic and electronic phase diagram of a model for the quasi-one-dimensional alkali metal iron selenide compound NaFeSe is presented. The novelty of this material is…
BCS-BEC crossover in a Excitonic Magnet
Nitin Kaushal, Rahul Soni, Alberto Nocera +2
The condensation of spin-orbit-induced excitons in electronic systems is attracting considerable attention. In the large Hubbard U limit, antiferromagnetism was propos…
Flat Bands and Ferrimagnetic Order in Electronically Correlated Dice-Lattice Ribbons
Rahul Soni, Nitin Kaushal, Satoshi Okamoto +1
We study ribbons of the dice two-dimensional lattice (that we call ``dice ladders'') known to have nontrivial topological properties, such as Chern numbers 2 [Wang and Y. Ran, Phys…