17 citations · 31 across the 4 of their papers we have counts for
4 papers
Topological characterization of special edge modes from the winding of relative phase
Sudarshan Saha, Tanay Nag, Saptarshi Mandal
The symmetry-constrained topological invariant fails to explain the emergence of the special edge modes when system does not preserve discrete symmetries. The inversion or chiral s…
Multiple higher-order topological phases with even and odd pairs of zero-energy corner modes in a symmetry broken model
Sudarshan Saha, Tanay Nag, Saptarshi Mandal
The higher-order corner modes for quantum anomalous Hall insulators in symmetry broken honeycomb lattice have been engineered recently. Here we consider an extended Haldane m…
Eight fold quantum Hall phases in a time reversal symmetry broken tight binding model
Sudarshan Saha, Tanay Nag, Saptarshi Mandal
We consider a time reversal symmetry (TRS) broken Kane-Mele model superimposed with Haldane model and chart out the phase diagram using spin Chern number to investigate the fate of…
Existence of nodal line semi-metal in a generalized three dimensional Haldane model
Sudarshan Saha, Saptarshi Mandal
We construct and study a time reversal broken tight binding model on diamond lattice with complex next-nearest-neighbour hopping which can be thought of as a generalisation of two…