Monodeep Chakraborty
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View article: From Legislative Promise to Institutional Practice: Assessing the Lokpal's Role in Combating Corruption in India
From Legislative Promise to Institutional Practice: Assessing the Lokpal's Role in Combating Corruption in India Open
View article: Quantum transport in an environment parametrized by dispersive bosons
Quantum transport in an environment parametrized by dispersive bosons Open
We generalize the two-channel (Edwards) fermion-boson model describing quantum transport in a background medium to the more realistic case of dispersive bosons. Using the variational exact diagonalization technique, we numerically solve th…
View article: Quantum transport in an environment parametrized by dispersive bosons
Quantum transport in an environment parametrized by dispersive bosons Open
We generalize the two-channel (Edwards) fermion-boson model describing quantum transport in a background medium to the more realistic case of dispersive bosons. Using the variational exact diagonalization technique, we numerically solve th…
View article: Particularities of polaron formation in the extended Holstein model with next nearest neighbor transfer
Particularities of polaron formation in the extended Holstein model with next nearest neighbor transfer Open
Employing a largely unbiased variational exact diagonalization technique, we analyze the consequences of longer-ranged electron hopping and electron-phonon interaction on polaron formation in one dimension. Having at our disposal the accur…
View article: Role of long-range coupling in the properties of single polarons in models with dual electron-phonon couplings
Role of long-range coupling in the properties of single polarons in models with dual electron-phonon couplings Open
We use the Variational Exact Diagonalization to investigate the single polaron properties for four different dual models, combining a short-range off-diagonal (Peierls) plus a longer-range diagonal (Holstein or breathing-mode) coupling. Th…
View article: Role of long-range coupling on the properties of single polarons in models with dual electron-phonon couplings
Role of long-range coupling on the properties of single polarons in models with dual electron-phonon couplings Open
We use the Variational Exact Diagonalization to investigate the single polaron properties for four different dual models, combining a short-range off-diagonal (Peierls) plus a longer-range diagonal (Holstein or breathing-mode) coupling. Th…
View article: Electro-Magnetic switching in NiO-Graphene film
Electro-Magnetic switching in NiO-Graphene film Open
Nickel oxide (NiO) thin film is grown via pulse laser deposition (PLD) technique and it is trapped in between conducting graphene films deposited through the same technique. Epitaxial crystalline growth of both NiO and graphene films are c…
View article: Tetramer orbital ordering and lattice chirality in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>MnTi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
Tetramer orbital ordering and lattice chirality in Open
Using density-functional theory calculations and experimental investigations\non structural, magnetic and dielectric properties, we have elucidated a unique\ntetragonal ground state for MnTi2O4, a Ti^{3+} (3d^1)-ion containing\nspinel-oxid…
View article: Light Bipolarons Stabilized by Peierls Electron-Phonon Coupling
Light Bipolarons Stabilized by Peierls Electron-Phonon Coupling Open
It is widely accepted that phonon-mediated high-temperature superconductivity is impossible at ambient pressure, because of the very large effective masses of polarons or bipolarons at strong electron-phonon coupling. Here we challenge thi…
View article: Light Bipolarons Stabilized by Peierls Electron-Phonon Coupling
Light Bipolarons Stabilized by Peierls Electron-Phonon Coupling Open
It is widely accepted that phonon-mediated high-temperature superconductivity is impossible at ambient pressure, because of the very large effective masses of polarons/bipolarons at strong electron-phonon coupling. Here we challenge this b…
View article: IEEE Transactions on Circuits and Systems for Video Technology publication information
IEEE Transactions on Circuits and Systems for Video Technology publication information Open
View article: Tuning of spin-anisotropy in non-magnetic heterostructures of a topological semimetal and band insulators
Tuning of spin-anisotropy in non-magnetic heterostructures of a topological semimetal and band insulators Open
We report a detailed all-electron-full potential abintio study of two superlattice heterostructures, one component of which is a unit cell of CuPt ordered InAs0:5Sb0:5. The alloy part of the heterostructures is a topological semimetal with…
View article: Bulk band inversion, surface Dirac cones, and first-principles resolution of topological band structure of lanthanum monopnictides LaSb and LaBi
Bulk band inversion, surface Dirac cones, and first-principles resolution of topological band structure of lanthanum monopnictides LaSb and LaBi Open
We have performed detailed \textit{ab initio} investigations of the comparative bulk and surface band structures of LaSb and LaBi to resolve the existing disagreements about the topological property of LaSb, considering LaBi as reference. …
View article: Phonon-mediated repulsion, sharp transitions and (quasi)self-trapping in the extended Peierls-Hubbard model
Phonon-mediated repulsion, sharp transitions and (quasi)self-trapping in the extended Peierls-Hubbard model Open
View article: Phonon-mediated repulsion, sharp transitions and (quasi)self-trapping in the extended Peierls-Hubbard model
Phonon-mediated repulsion, sharp transitions and (quasi)self-trapping in the extended Peierls-Hubbard model Open
We study two identical fermions, or two hard-core bosons, in an infinite chain and coupled to phonons by interactions that modulate their hopping as described by the Peierls/Su-Schrieffer-Heeger (SSH) model. We show that exchange of phonon…
View article: Edwards polaron formation : From one to three dimensions
Edwards polaron formation : From one to three dimensions Open
Employing a self-consistent (optimized) variational diagonalization scheme,\nwe investigate the formation of polaronic quasiparticles in a spinless\nfermion-boson transport model that couples the movement of charge carriers to\nfluctuation…
View article: Orbital effects of strong magnetic field on a two-dimensional Holstein polaron
Orbital effects of strong magnetic field on a two-dimensional Holstein polaron Open
We investigate the orbital effects of strong external magnetic field on the\nground state properties of a two dimensional holstein polaron, employing\nvariational approaches based on the exact diagonalization (VAED). From the\nground state…
View article: Edwards polaron formation: From 1D to 3D
Edwards polaron formation: From 1D to 3D Open
Employing a self-consistent (optimized) variational diagonalization scheme we investigate the formation of polaronic quasiparticles in a spinless fermion-boson transport model that couples the movement of charge carriers to uctuations and …