230 citations · 2.1k across the 72 of their papers we have counts for
9 papers · 1 filter
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…
Effects of staggered Dzyaloshinskii-Moriya interactions in a quasi-two-dimensional Shastry-Sutherland model
Tianqi Chen, Chu Guo, Pinaki Sengupta +1
Frustrated quantum spin systems exhibit exotic physics induced by external magnetic field with anisotropic interactions. Here, we study the effect of non-uniform Dzyaloshinskii-Mor…
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…
High Frequency Domain Wall Oscillations in Ferromagnetic Nanowire with a Nanoscale Dzyaloshinskii Moriya Interaction (DMI) Region
Durgesh Kumar, Rachid Sbiaa, Pinaki Sengupta +1
The Dzyaloshinskii Moriya Interaction (DMI) has laid the foundation for many novel chiral structures such as Skyrmions. In most of the studies so far, the DMI is present in the who…
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…