8 citations · 20 across the 6 of their papers we have counts for
7 papers
Electron-phonon control of obstructed and quantum spin Hall topology in an altermagnet
Kuntal Bhattacharyya, Bilal Tanatar, Saurabh Basu
We theoretically demonstrate control over the interplay between obstructed atomic insulating and first-order topological phases via electron-phonon coupling (EPC) in a -wave alt…
Emergent topology of flat bands in a twisted bilayer - lattice
Gourab Paul, Srijata Lahiri, Kuntal Bhattacharyya +1
We investigate an interesting interplay of destructive interference due to lattice geometry and band folding due to enlargement of the Brillouin zone in generating and subsequently…
Topological characterization of magnon-polaron bands and thermal Hall conductivity in a frustrated kagome antiferromagnet
Shreya Debnath, Kuntal Bhattacharyya, Saurabh Basu
Spin-phonon coupling and its efficacy in inducing multiple topological phase transitions in a frustrated kagome antiferromagnet have been rare in literature. To this end, we study…
Emergent topological phases and coexistence of gapless and spectral-localized Floquet quantum spin Hall states via electron-phonon interaction
Srijata Lahiri, Kuntal Bhattacharyya, Saurabh Basu
In this work, a thorough exploration has been carried out to unravel the role of electron-phonon interaction (EPI) in a Bernevig-Hughes-Zhang (BHZ) quantum spin Hall (QSH) insulato…
Floquet-engineered diode performance in a Majorana-quantum dot Josephson junction
Koustav Roy, Gourab Paul, Debika Debnath +2
We study nonreciprocal signatures of Josephson current (JC) in a quantum dot (QD)-based Josephson junction (JJ) that comprises of two periodically driven Kitaev chains (KCs) couple…
Holstein polaron in a pseudospin- quantum spin Hall system: first and second order topological phase transitions
Kuntal Bhattacharyya, Srijata Lahiri, Mijanur Islam +1
We theoretically propose the occurrence of a quantum spin Hall (QSH) and a second order topological phase transition (TPT) driven by electron-phonon (e-p) coupling in a pseudospin-…
Electron-phonon coupling induced topological phase transition in an - Haldane-Holstein model
Mijanur Islam, Kuntal Bhattacharyya, Saurabh Basu
We present impelling evidence of topological phase transitions induced by electron-phonon (e-ph) coupling in an - Haldane-Holstein model that presents smooth tunability bet…