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cond-mat.str-el2026
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…
cond-mat.str-el2025
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…
cond-mat.str-el2024
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…