6 papers
Topological spin-texture transitions in van der Waals magnets revealed by X-ray Fourier transform holography
Sourav Chowdhury, Soumyaranjan Dash, Michael Schneider +14
Nontrivial topological spin-textures, such as skyrmions, merons, bimerons, and skyrmioniums, are envisioned as robust building blocks for future memory and logic devices. Controlla…
Partial Kondo Screening Solves the Mystery of Rare Earth Tetraborides
Soumyaranjan Dash, Sanjeev Kumar
We invoke a new mechanism to account for multiple magnetization plateaus observed in rare-earth tetraborides. Using a combination of hybrid and semiclassical Monte Carlo simulation…
Valence Bond Glass and Glassy Spin Liquid in Disordered Frustrated Magnets
Soumyaranjan Dash, Vansh Narang, Sanjeev Kumar
The absence of conventional magnetic order together with anomalous low-temperature magnetic heat capacity is often interpreted as evidence for quantum spin liquid ground states in…
Thermal Evolution of Skyrmions in Synthetic Ferrimagnets of Co/Gd Heterostructure for Topological Spintronic Applications
Bhuvneshwari Sharma, Soumyaranjan Dash, Shaktiranjan Mohanty +5
Synthetic ferrimagnetic (SFiM) multilayers offer a versatile platform for hosting skyrmions with tunable magnetic properties, combining the advantages of ferromagnets and antiferro…
Vacancy induced expansion of spin-liquid regime in J1-J2 Heisenberg model
Soumyaranjan Dash, Anish Koley, Sanjeev Kumar
We study the model for spin-1/2 J1-J2 Heisenberg antiferromagnets on a square lattice in the presence of spin vacancies. In order to overcome the methodological challenges associat…
Site Selective Spontaneous Symmetry Breaking and Partial Order in Kondo Lattices
Soumyaranjan Dash, Sanjeev Kumar
Using the combination of a new effective Hamiltonian approach and hybrid Monte-Carlo simulations, we unveil a variety of partially magnetically ordered (PMO) phases in the Kondo la…