51 citations · 221 across the 26 of their papers we have counts for
26 papers
Emergent superconductivity upon disordering a topological insulator
Carlos Eduardo S. P. Corsino, Hermann Freire, Anurag Banerjee
We study the emergence of superconductivity in a quantum spin Hall insulator and identify a disorder-driven enhancement of pairing arising from quantum geometry. Using sign-problem…
Correlated Mott semi-metal in the topological heavy fermion model
Emile Pangburn, Igor de Melo Froldi, Anurag Banerjee
The topological heavy-fermion model provides a minimal framework for describing the coexistence of localized moments and itinerant Dirac electrons in magic-angle twisted bilayer gr…
Charge Modulation in the Vortex Halo of a Superconductor Enhances its Critical Magnetic Field
Anurag Banerjee, Catherine Pépin, Nandini Trivedi +1
When an orbital magnetic field suppresses superconductivity, forming periodic vortices in type-II superconductors, subdominant orders can emerge in the vortex cores. Rather than co…
Probing quasiparticle excitations in a doped Mott insulator via Friedel oscillations
Anurag Banerjee, Emile Pangburn, Catherine Pépin +1
In this work, we investigate impurity-induced Friedel oscillations in the doped two-dimensional Hubbard model, focusing on the role of holon and doublon excitations. We show that w…
Impurity-induced Mott ring states and Mott zeros ring states in the Hubbard operator formalism
Emile Pangburn, Anurag Banerjee, Catherine Pépin +1
We study the formation of subgap impurity states in strongly correlated Mott insulators. We use a composite operator method that gives us access to both the bulk Green's function,…
Topological charge excitations and Green's function zeros in paramagnetic Mott insulators
Emile Pangburn, Catherine Pépin, Anurag Banerjee
We investigate the emergence of topological features in the charge excitations of Mott insulators in the Chern-Hubbard model. In the strong correlation regime, treating electrons a…
Charge density wave solutions of the Hubbard model in the composite operator formalism
Anurag Banerjee, Emile Pangburn, Chiranjit Mahato +2
We investigate the charge density wave phase in the strongly correlated Hubbard model without any other broken symmetry phase. Starting from the atomic Hamiltonian with no hopping,…
Charge modulation in the background of depleted superconductivity inside vortices
Chiranjit Mahato, Anurag Banerjee, Catherine Pépin +1
We use the Bogoliubov-de Gennes (BDG) formalism to undertake a microscopic investigation of a vortex lattice in a strongly correlated, type-II, d-wave superconductor (SC) treating…
Spontaneous layer selective Mott phase in the bilayer Hubbard model
Emile Pangburn, Louis Haurie, Sébastien Burdin +2
Quantum materials featuring both itinerant and localized degrees of freedom exhibit numerous exotic phases and transitions that deviate from the Ginzburg-Landau paradigm. This work…
Purely antiferromagnetic frustrated Heisenberg model in spin ladder compound BaFeSe
Roll A., Petit S., Forget A. +4
The spin dynamics in the block magnetic phase of the iron-based ladder compound \bfs\ has been studied by means of single crystal inelastic neutron scattering. Using linear spin wa…
Bands renormalization and superconductivity in the strongly correlated Hubbard model using composite operators method
L. Haurie, M. Grandadam, E. Pangburn +3
We use the composite operator method (COM) to analyze the strongly correlated repulsive Hubbard model, investigating the effect of nearest-neighbor hoppings up to fourth order on a…
Proximity-induced charge density wave in a metallic system
Anurag Banerjee, Louis Haurie, Catherine Pépin
Non-local quasiparticles in correlated quantum materials can exhibit the proximity effect. For instance, in metal superconductor hybrid systems, the leaking of cooper pairs to the…
Incoherent transport in a model for the strange metal phase: Memory-matrix formalism
Emile Pangburn, Anurag Banerjee, Hermann Freire +1
We revisit a phenomenological model of fermions coupled to fluctuating bosons that emerges from finite-momentum particle-particle pairs for describing the strange metal phase in th…
Finite-dimensional signature of spinodal instability in an athermal hysteretic transition
Anurag Banerjee, Tapas Bar
We study the off-equilibrium critical phenomena across a hysteretic first-order transition in disordered athermal systems. The study focuses on the zero temperature random field Is…
Chiral to Nematic Crossover in the Superconducting State of 4Hb-TaS
I. Silber, S. Mathimalar, I. Mangel +10
Most superconductors have an isotropic, single component order parameter, and are well described by the BCS theory for superconductivity. Unconventional, multiple components superc…
Charge density wave and superconductivity in 6R-TaS2
Sudip Pal, Prakash Bahera, S. R. Sahoo +6
The layered transition metal dichalcogenide compounds 1T-TaS2 and 4H-TaS2 are well known for their exotic properties, which include charge density wave, superconductivity, Mott tra…
Local and Nonlocal Transport Spectroscopy in Planar Josephson Junctions
A. Banerjee, O. Lesser, M. A. Rahman +7
We report simultaneously acquired local and nonlocal transport spectroscopy in a phase-biased planar Josephson junction based on an epitaxial InAs/Al hybrid two-dimensional heteros…
Phase coexistence and associated non-equilibrium dynamics under simultaneously applied magnetic field and pressure
Sudip Pal, Kranti Kumar, A. Banerjee
A quantitative estimation of the effect of simultaneously applied external pressure (P) and magnetic field (H) on the phase coexistence has been presented for Pr0.5Ca0.5Mn0.975Al0.…
Ferromagnetic exchange field stabilized antiferromagnetic ordering in a cuprate superconductor
Biswajit Dutta, A. Banerjee
We report experimental evidence of formation of antiferromagnetic clusters in composites made of a cuprate superconductor La1.85Sr0.15CuO4 (LCu) and a ferromagnet La0.6Sr0.4CoO3 (L…
Charge, bond, and pair density wave orders in a strongly correlated system
Anurag Banerjee, Catherine Pépin, Amit Ghosal
The coexistence of multiple quasi-degenerate orders is the hallmark of the strongly correlated materials. Experiments often reveal several spatially modulated orders in the underdo…
Pseudogap phase and fractionalization: Predictions for Josephson junction setup
Anurag Banerjee, Alvaro Ferraz, Catherine Pépin
The pseudogap regime of the underdoped cuprates arguably remains one of the most enigmatic phenomena of correlated quantum matter. Recent theoretical ideas suggest that a pair dens…
Suppression of spinodal instability by disorder in an athermal system
Tapas Bar, Arup Ghosh, Anurag Banerjee
We observed asymmetric critical slowing down and asymmetric dynamical scaling exponent in the superheating and supercooling kinetic processes during the thermally-induced metal-ins…
New paradigm for a disordered superconductor in a magnetic field
Anushree Datta, Anurag Banerjee, Nandini Trivedi +1
We show that while orbital magnetic field and disorder, acting individually weaken superconductivity, acting together they produce an intriguing evolution of a two-dimensional type…
Strange metal from incoherent bosons
Anurag Banerjee, Maxence Grandadam, Hermann Freire +1
The breakdown of the celebrated Fermi liquid theory in the strange metal phase is the central enigma of correlated quantum matter. Motivated by recent experiments reporting short-l…