56 citations · 166 across the 13 of their papers we have counts for
13 papers
Topological Superconductivity by Engineering Noncollinear Magnetism in Magnet/ Superconductor Heterostructures: A Realistic Prescription for 2D Kitaev Model
Pritam Chatterjee, Sayan Banik, Sandip Bera +4
We report on a realistic and rather general scheme where noncollinear magnetic textures proximitized with the most common -wave superconductor can appear as the alternative to $…
Tailoring phase transition from topological superconductor to trivial superconductor induced by magnetic textures of a spin-chain on a -wave superconductor
Pritam Chatterjee, Saurabh Pradhan, Ashis K. Nandy +1
We theoretically investigate the phase transition from a non-trivial topological -wave superconductor to a trivial -wave like superconducting phase through a gapless phase, d…
Yu-Shiba-Rusinov states of single magnetic molecule in an superconductor
Saurabh Pradhan, Jonas Fransson
We use the numerical renormalization group theory to investigate the Yu-Shiba-Rusinov (YSR) bound state properties of single magnetic molecules placed in an s-wave superconducting…
Strongly anharmonic collective modes in a coupled electron-phonon-spin problem
Sauri Bhattacharyya, Sankha Subhra Bakshi, Saurabh Pradhan +1
We solve for the finite temperature collective mode dynamics in the Holstein-double exchange problem, using coupled Langevin equations for the phonon and spin variables. We present…
Identification of topological superconductivity in magnetic impurity systems using bulk spin-polarization
Mahdi Mashkoori, Saurabh Pradhan, Kristofer Björnson +2
Magnetic impurities on the surface of spin-orbit coupled but otherwise conventional superconductors provide a promising way to engineer topological superconductors with Majorana bo…
Time-dependent potential impurity in topological insulator
Saurabh Pradhan, Jonas Fransson
We consider periodically driven potential impurities coupled to the surface states of a two-dimensional topological insulator. The problem is addressed by means of two models, out…
Modeling dynamical phonon fluctuations across the magnetically driven polaron crossover in the manganites
Sauri Bhattacharyya, Saurabh Pradhan, Pinaki Majumdar
We investigate the dynamical structure factor associated with lattice fluctuations in a model that approximates the manganites. It involves electrons strongly coupled to core spins…
Thermal dynamics of lattice modes near a polaronic crossover: from the dilute polaron limit to a charge ordered state
Sauri Bhattacharyya, Saurabh Pradhan, Pinaki Majumdar
We provide a comprehensive solution to the lattice dynamics problem in the two dimensional Holstein model at finite electron density and finite temperature. We work in the physical…
Effect of site dilution in the two-dimensional attractive Hubbard model
Saurabh Pradhan, G. Venketeswara Pai
We study the percolative superconducting transition as the density of randomly placed attractive centers grows in a host metal. Employing the Hubbard-Stratanovich transformation fo…
The Holstein-Hubbard Model at Half-filling : A Static Auxiliary Field Study
Saurabh Pradhan, G. Venketeswara Pai
We study the Holstein-Hubbard model at half filling to explore the ordered phases such as the charge density wave and antiferromagnet. The Coulomb interaction is rewritten in terms…
Proximity induced superconductivity in Weyl semi-metals
Udit Khanna, Arijit Kundu, Saurabh Pradhan +1
We introduce superconducting proximity effects in Weyl semi-metals (WSM) with broken time reversal symmetry by tunnel coupling one of its surfaces to an s-wave superconductor using…
Transport and STM studies of hyperbolic surface states of topological insulators
Udit Khanna, Saurabh Pradhan, Sumathi Rao
Motivated by the transmission of topological surface states through atomic scale steps, we study the transport of gapless Dirac fermions on hyperbolic surfaces. We confirm that, in…
Disorder overtakes Order in Information Concentration over Quantum Networks
R. Prabhu, Saurabh Pradhan, Aditi Sen De +1
We consider different classes of quenched disordered quantum XY spin chains, including quantum XY spin glass and quantum XY model with a random transverse field, and investigate th…