230 citations · 2.1k across the 72 of their papers we have counts for
7 papers · 2 filters
Topological Hall effect in the Shastry-Sutherland lattice
Munir Shahzad, Nyayabanta Swain, Pinaki Sengupta
We study the classical Heisenberg model on the geometrically frustrated Shastry-Sutherland (SS) lattice with additional Dzyaloshinskii-Moriya (DM) interaction in the presence of an…
Anti-chiral edge states in Heisenberg ferromagnet on a honeycomb lattice
Dhiman Bhowmick, Pinaki Sengupta
We demonstrate the emergence of anti-chiral edge states in a Heisenberg ferromagnet with Dzyaloshinskii-Moriya interaction(DMI) on a honeycomb lattice with in-equivalent sub-lattic…
Non-classicality of spin structures in condensed matter: An analysis of SrCuO
W. Y. Kon, T. Krisnanda, P. Sengupta +1
When two quantum systems are coupled via a mediator, their dynamics has traces of non-classical properties of the mediator. We show how this observation can be effectively utilised…
NMR relaxation in the spin-1 Heisenberg chain
Sylvain Capponi, Maxime Dupont, Anders W. Sandvik +1
We consider the isotropic Heisenberg chain with a finite Haldane gap and use state-of-the-art numerical techniques to investigate its dynamical properties at finite tempe…
Electronic Ground State in Bilayer Graphene with Realistic Coulomb Interactions
Jia Ning Leaw, Ho-Kin Tang, Pinaki Sengupta +3
Both insulating and conducting electronic behaviors have been experimentally seen in clean bilayer graphene samples at low temperature, and there is still no consensus on the natur…
Pair hopping in systems of strongly interacting hard-core bosons
Alvin J. R. Heng, Wenan Guo, Anders W. Sandvik +1
We have used the Stochastic Series Expansion quantum Monte Carlo method to study interacting hard-core bosons on the square lattice, with pair-hopping processes supplementing the s…