85 citations · 1.5k across the 80 of their papers we have counts for
81 papers
Intriguing topological superconductor phases in long-range extended Kitaev models: an interplay between sub-lattices and power-law interaction
Dharana Joshi, Amaan Khan, Tanay Nag
The power-law profile of hopping and superconductivity introduces rich critical phenomena that are not possible to explore in the nearest-neighbor models. Having this in mind, we c…
Localization and Transport in a Non-Hermitian Hexagonal Harper Model
Akshey Rajoriya, Dibyajyoti Sahu, Suhas Gangadharaiah +1
We investigate a one-dimensional non-Hermitian hexagonal Harper model with quasiperiodically modulated hopping amplitudes. In the Hermitian limit, the model exhibits metallic, insu…
Topological Hall plateau in quasi-2D kagome magnet YMnSn
Sambit Jena, Nastaran Salehi, Manuel Pereiro Lopez +5
We examine the impact of the Dzyaloshinskii--Moriya interaction (DMI) in kagome magnets and show that a predominantly planar DMI together with ferromagnetic exchange stabilizes a d…
Spin-orbit coupling driven topological superconductivity in twisted bilayer graphene-WSe heterostructures
Kamalesh Bera, Arijit Saha, Tanay Nag
Commencing from the low-energy Bistritzer-MacDonald continuum model of twisted bi-layer graphene (tBLG) with proximity-induced Ising, Rashba, and intrinsic spin-orbit couplings (SO…
Superconducting diode effect via Floquet topological Fulde-Ferrell phase in driven Rashba nanowire
Sayak Bhowmik, Arijit Saha, Tanay Nag
Much has been studied on Floquet engineering in Rashba nanowire model regarding topological superconductivity hosting Majorana - and anomalous -modes, here we theoretically i…
Quantized orbital and spin Hall transport: interplay between -hybridization, altermagnetism and spin-orbit coupling
Saikat Saha, Banasree Sadhukhan, Tanay Nag
We here explore the emergence of orbital and spin Hall effects, originating beyond the - coupling, and investigate the interplay between inter-orbit hybridization, relativist…
Finite-size scaling properties of classical random walk on various two-dimensional lattices
Nimish Sharma, Tanay Nag
We consider various two-dimensional lattices such as square, Kagome, Lieb, honeycomb, dice lattices of finite extent, to study the effect of lattice profile in terms of the number…
Semiclassical theory of frequency dependent linear magneto-optical transport in Weyl semimetals
Azaz Ahmad, Pankaj Bhalla, Snehasish Nandy +1
We develop a semiclassical Boltzmann theory for frequency-dependent magneto-optical transport in Weyl semimetals (WSMs), incorporating momentum-dependent relaxation via a scatterin…
Chiral topological superconductivity in twisted bilayer and double bilayer graphene
Kamalesh Bera, Tanay Nag, Arijit Saha
We present a theoretical investigation of the emergence of chiral topological superconductivity in small-angle twisted bilayer graphene (tBLG) and twisted double bilayer graphene (…
Field-free diode effects in one-dimensional superconductor: a complex interplay between Fulde-Ferrell pairing and altermagnetism
SVS Sai Ruthvik, Tanay Nag
We investigate the emergence of nonreciprocal dissipationless supercurrents in one-dimension manifested through the superconducting diode effect (SDE) and the Josephson diode effec…
Topological superconductivity and superconducting diode effect mediated via unconventional magnet and Ising spin-orbit coupling
Amartya Pal, Debashish Mondal, Tanay Nag +1
We propose a theoretical framework in which a one-dimensional (1D) tight-binding model incorporating unconventional magnetic order together with Rashba and Ising spin-orbit couplin…
Generation of concurrence in a generalized central spin model with a three-spin interacting environment
Adithya A. Vasista, Anushka Agrawal, Tanay Nag
We consider the three-spin Ising model to study the effect of three-spin interacting term on bi-partitie entanglement between adjacent spins. The three-dominated disordered region…
Adiabatic charge transport through non-Bloch bands
Dharana Joshi, Tanay Nag
We explore the non-reciprocal intracell hopping mediated non-Hermitian topological phases of an extended Su-Schrieffer-Heeger model hosting second-nearest-neighbour hopping. We mic…
The orbital-driven topological phase transition and planar Hall responses in ternary tellurides Weyl semi-metals
Banasree Sadhukhan, Tanay Nag
We study electronic properties of the ternary tellurides TaXTe (X=Rh, Ir) using density functional theory and investigate chiral anomaly mediated planar Hall response from ab i…
Topological energy pumping in a quasi-periodically driven four-level system
Vansh Kaushik, Sayan Choudhury, Tanay Nag
We investigate a quasi-periodically driven four-level system that serves as a temporal analog of topological phenomena found in four-band models with intertwined spin and orbital d…
Dissipation induced Majarona - and -modes in a driven Rashba nanowire
Koustabh Gogoi, Tanay Nag, Arnob Kumar Ghosh
Periodic drive is an intriguing way of creating topological phases in a non-topological setup. However, most systems are often studied as a closed system, despite being always in c…
Josephson current signature of Floquet Majorana and topological accidental zero modes in altermagnet heterostructures
Amartya Pal, Debashish Mondal, Tanay Nag +1
We theoretically investigate the generation and Josephson current signatures of Floquet Majorana end modes (FMEMs) in a periodically driven altermagnet (AM) heterostructure. Consid…
Extended Haldane model -- a modern gateway to topological insulators
Tanay Nag, Saptarshi Mandal
The seminal Haldane model brings up a paradigm beyond the quantum Hall effect to look for a plethora of topological phases in the honeycomb and other lattices. Here we dwell into t…
Adiabatic charge transport in extended SSH models
Dharana Joshi, Tanay Nag
We explore the topological properties of extended SSH models, considering four sub-lattices in a unit cell and second-nearest-neighbor intercell hopping for SSH4 and SSH long-range…
Emergence of topological superconductivity in the presence of chiral magnetism in 2D CrInTe
Arnob Mukherjee, Fengyi Zhou, Soheil Ershadrad +3
We propose a general framework for designing a two-dimensional (2D) topological superconductor (TSC) using a magnet-superconductor hybrid system. This setup involves a monolayer of…
Anomalous spectrum in a non-Hermitian quasiperiodic chain
Soumya Ranjan Padhi, Sanchayan Banerjee, Tanay Nag +1
The spectra of particles in disordered lattices can either be completely extended or localized or can be intermediate which hosts both the localized and extended states separated f…
Distinguishing between topological Majorana and trivial zero modes via transport and shot noise study in an altermagnet heterostructure
Debashish Mondal, Amartya Pal, Arijit Saha +1
We theoretically investigate the transport and shot noise properties of a one-dimensional semiconducting nanowire with Rashba spin-orbit coupling~(SOC) placed in closed proximity t…
Statistical prethermalization in randomly kicked many-body classical rotor system
Aritra Kundu, Tanay Nag, Atanu Rajak
We explore the phenomena of prethermalization in a many-body classical system of rotors under aperiodic drives characterised by waiting time distribution (WTD), where the waiting t…
Sb2Se3 and SbBiSe3 Surface Capping and Biaxial Strain Co-Engineering for Tuning the Surface Electronic Properties of Bi2Se3 Nanosheet- A Density Functional Theory based Investigation
Naresh Bahadursha, Banasree Sadhukhan, Tanay Nag +2
In this work, for the first time, a density functional theory (DFT) based comprehensive theoretical study is performed on the surface electronic properties of Bi2Se3 nanosheet in t…