3 citations · 3 across the 5 of their papers we have counts for
10 papers
Large nonlinear Hall effect in strained moiré structures hosting high-pseudospin fermions
Srijata Lahiri, Gourab Paul, Bilal Tanatar +1
We investigate the linear and nonlinear Hall response of a moiré \emph{watermill lattice}, in which stacking and twisting generate a four-band manifold near the Fermi level with su…
Probing topological phase transitions via nonlinear Hall response in strained moiré dice lattice
Gourab Paul, Srijata Lahiri, Bilal Tanatar +1
Valley polarized twisted bilayer dice lattice hosts topologically nontrivial flat bands far from charge neutrality due to broken time reversal symmetry, whereas the ones in the vic…
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…
Emergence of Non-Hermitian Magic Angles and Topological Phase Transitions in Twisted Bilayer - Lattices
Shaina Gandhi, Gourab Paul, Srijata Lahiri +1
We investigate the flat-band properties and topological phase transitions in a non-Hermitian twisted bilayer lattice. Here, non-Hermiticity is introduced via Hatano-Nelson…
Second-order Skin Effect in a Brick-Wall Lattice
Dipendu Halder, Srijata Lahiri, Saurabh Basu
Non-Hermitian skin effect, which is a unique feature of non-Hermitian systems, exhibits the formation of an extensive number of boundary modes under open boundary conditions. Howev…
Topological defect-mediated corner states and higher-order bulk topology in a two-dimensional crystalline insulator
Manideep Gone, Srijata Lahiri, Nabyendu Das
We report appearance of non-trivial zero energy corner modes in the form of topological defects (trimers) in a carefully designed 2D crystalline topological insulator. The proposed…