32 citations · 56 across the 8 of their papers we have counts for
8 papers
Field tuning Kitaev systems for spin fractionalization and topological order
Jagannath Das, Sarbajaya Kundu, Aman Kumar +1
The honeycomb Kitaev model describes a spin liquid with topological order and fractionalized excitations consisting of gapped -fluxes and free Majorana fermions. Competing…
CDMFT+HFD : an extension of dynamical mean field theory for nonlocal interactions applied to the single band extended Hubbard model
Sarbajaya Kundu, David Sénéchal
We examine the phase diagram of the extended Hubbard model on a square lattice, for both attractive and repulsive nearest-neighbor interactions, using CDMFT+HFD, a combination of C…
Theory of phonon instabilities in Weyl semimetals at high magnetic fields
Sarbajaya Kundu, Claude Bourbonnais, Ion Garate
The behavior of three-dimensional (3D) semimetals under strong magnetic fields is a topic of recurring interest in condensed matter physics. Recently, the advent of Weyl and Dirac…
Spin density wave order in interacting type-I and type-II Weyl semimetals
Sarbajaya Kundu, David Sénéchal
Weyl semimetals, featuring massless linearly dispersing chiral fermions in three dimensions, provide an excellent platform for studying the interplay of electronic interactions and…
Competing phases and critical behavior in three coupled spinless Luttinger liquids
S. Kundu, V. Tripathi
We study electronic phase competition in a system of three coupled spinless Luttinger liquids using abelian bosonization, together with a perturbative renormalization group (RG) an…
Chiral wave superconductivity in PbSnTe: signatures from bound-state spectra and wavefunctions
S. Kundu, V. Tripathi
Surface superconductivity has recently been observed on the (001) surface of the topological crystalline insulator PbSnTe using point-contact spectroscopy, and theore…
Competing effects of Hund's splitting and symmetry-breaking perturbations on electronic order in PbSnTe
Sarbajaya Kundu, Vikram Tripathi
We study the effect of a uniform external magnetization on p-wave superconductivity on the (001) surface of the crystalline topological insulator(TCI) PbSnTe. It was…
Magnetic anisotropy of the alkali iridate NaIrO at high magnetic fields: evidence for strong ferromagnetic Kitaev correlations
Sitikantha. D Das, Sarbajaya Kundu, Zengwei Zhu +10
The magnetic field response of the Mott-insulating honeycomb iridate NaIrO is investigated using torque magnetometry measurements in magnetic fields up to 60 tesla. A p…