10 citations · 16 across the 15 of their papers we have counts for
15 papers
Hierarchy of topological superconductivity generated via heterostructures of unconventional -wave magnets
Koushik R. Das, Arijit Saha
A theoretical framework is proposed to engineer both first and second-order topological superconducting phases in a two-dimensional (2D) heterostructure, consisting of a quantum sp…
Quantum geometric signatures of Link-Unlink transitions and nonlinear Hall response in Hopf-link semimetals
Kamalesh Bera, Arijit Saha, Debashree Chowdhury
Quantum geometry, comprising of quantum metric and Berry curvature, plays a significant role in the electronic transport properties of solids. In this work, we theoretically invest…
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…
Emergent superconducting phases in unconventional -wave magnets: Topological superconductivity, Bogoliubov Fermi surfaces and superconducting diode effect
Amartya Pal, Paramita Dutta, Arijit Saha
The recent discovery of unconventional momentum-dependent magnetic orders has expanded the landscape of magnetism beyond conventional ferromagnetism and antiferromagnetism. Among t…
Current switching behavior mediated via hinge modes in higher-order topological phases using altermagnets
Minakshi Subhadarshini, Amartya Pal, Arijit Saha
We propose a theoretical framework to engineer hybrid-order and higher-order topological phases in three-dimensional topological insulators by coupling to -wave altermagnets (AM…
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…
Proximity-induced superconductivity and emerging topological phases in altermagnet-based heterostructures
Ohidul Alam, Amartya Pal, Paramita Dutta +1
We present a theoretical framework for investigating superconducting proximity effect in altermagnet (AM)-superconductor (SC) heterostructures. In general, AMs, characterized by va…
Spin polarization and diode effect in thermoelectric current through altermagnet-based superconductor heterostructures
Debika Debnath, Arijit Saha, Paramita Dutta
The recent advent of a new class of magnetic material named as {\it altermagnet} (AM), characterized by a combination of momentum-dependent spin splitting with zero net magnetizati…
Non-Hermitian band topology in twisted bilayer graphene aligned with hexagonal boron nitride
Kamalesh Bera, Debasish Mondal, Arijit Saha +1
Utilizing the established Bistritzer-MacDonald model for twisted bilayer graphene (tBLG), we theoretically investigate the non-Hermitian (NH) topological properties of this in the…
Identifying Majorana edge and end modes in a Josephson junction of a -wave superconductor with a magnetic barrier
Minakshi Subhadarshini, Amartya Pal, Pritam Chatterjee +1
We propose a theoretical model describing a Josephson junction featuring a magnetically textured barrier within two-dimensional (2D) -wave superconductor, considering both $p_x…
Thermoelectric properties of magic angle twisted bilayer graphene-superconductor hetero-junction: effect of valley polarization and trigonal warping
Kamalesh Bera, Pritam Chatterjee, Priyanka Mohan +1
We theoretically investigate the thermoelectric properties (electronic contribution) of a normal-superconductor (NS) hybrid junction, where the normal region consists of magic-angl…
Identifying Bogoliubov Fermi surfaces via thermoelectric response in a -wave superconductor heterostructure
Amartya Pal, Paramita Dutta, Arijit Saha
We theoretically investigate the thermoelectric response of Bogoliubov Fermi surfaces (BFSs) generated in a two dimensional unconventional -wave superconductor subjected to an e…
Multiple Topological Phase Transitions Unveiling Gapless Topological Superconductivity in Magnet/Unconventional Superconductor Hybrid Platform
Minakshi Subhadarshini, Amartya Pal, Pritam Chatterjee +1
We propose a theoretical framework for generating gapless topological superconductivity (GTSC) hosting Majorana flat edge modes (MFEMs) in the presence of a two-dimensional (2D) ar…
Tailoring topological band properties of twisted double bilayer graphene: effects due to spin-orbit coupling
Kamalesh Bera, Priyanka Mohan, Arijit Saha
Our theoretical study unfolds the topological phase transitions (within bands of the Moiré super-lattice) in small angle twisted double bilayer graphene (tDBLG) under the influence…
Fermi arcs mediated transport in inversion symmetry-broken Weyl semimetal nanowire and its hybrid junctions
Amartya Pal, Paramita Dutta, Arijit Saha
The emergence of gapless surface states, known as Fermi arcs (FAs), is one of the unique properties of the novel topological Weyl semimetal (WSM). However, extracting the signature…