49 citations · 168 across the 10 of their papers we have counts for
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Topologically distinct atomic insulators
Sanjib Kumar Das, Sourav Manna, Bitan Roy
Topological classification of quantum solids often (if not always) groups all trivial atomic or normal insulators (NIs) into the same featureless family. As we argue here, this is…
Dynamic melting and condensation of topological dislocation modes
Sanjib Kumar Das, Bitan Roy
Bulk dislocation lattice defects are instrumental in identifying translationally active topological insulators (TATIs), featuring band inversion at a finite momentum (${\bf K}_{\rm…
Third-order Hall effect in the surface states of a topological insulator
Tanay Nag, Sanjib Kumar Das, Chuanchang Zeng +1
Time reversal and inversion symmetric materials fail to yield linear and nonlinear responses since they possess net zero Berry curvature. However, higher-order Hall response can be…
Noncrystalline topological superconductors
Sourav Manna, Sanjib Kumar Das, Bitan Roy
Topological insulators, featuring bulk-boundary correspondence, have been realized on a large number of noncrystalline materials, among which amorphous network, quasicrystals and f…
Nontrivial gapless electronic states at the stacking faults of weak topological insulators
Gabriele Naselli, Viktor Könye, Sanjib Kumar Das +4
Lattice defects such as stacking faults may obscure electronic topological features of real materials. In fact, defects are a source of disorder that can enhance the density of sta…