49 citations · 168 across the 10 of their papers we have counts for
10 papers
Quantized thermal and spin transports of dirty planar topological superconductors
Sanjib Kumar Das, Bitan Roy
Nontrivial bulk topological invariants of quantum materials can leave their signatures on charge, thermal and spin transports. In two dimensions, their imprints can be experimental…
Hybrid symmetry class topological insulators
Sanjib Kumar Das, Bitan Roy
Traditional topological materials belong to different Altland-Zirnbauer symmetry classes (AZSCs) depending on their non-spatial symmetries. Here we introduce the notion of hybrid s…
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…
Topological Magnus responses in two and three dimensional systems
Sanjib Kumar Das, Tanay Nag, Snehasish Nandy
Recently, time-reversal symmetric but inversion broken systems with non-trivial Berry curvature in the presence of a built-in electric field have been proposed to exhibit a new typ…
Dual topology in Jacutingaite PtHgSe
Jorge I. Facio, Sanjib Kumar Das, Yang Zhang +3
Topological phases of electronic systems often coexist in a material, well-known examples being systems which are both strong and weak topological insulators. More recently, a numb…
Topological crystalline insulators from stacked graphene layers
Sanjib Kumar Das, Binghai Yan, Jeroen van den Brink +1
In principle the stacking of different two-dimensional (2D) materials allows the construction of 3D systems with entirely new electronic properties. Here we propose to realize topo…