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cond-mat.stat-mech2025
High temperature modulations, meso-scale interactions and hyperscaling breakdown in Ising models with frustration: some insights from thermodynamic geometry
Soumen Khatua, Riekshika Sanwari, Vikram Patil +1
In this work we revisit the Axial Third Nearest Neighbour Ising (A3NNI) chain and examine in detail some aspects of its phase behaviour ensuing from competing interactions and resu…
cond-mat.stat-mech2024
Probing the mesoscopics of competing interactions with the thermodynamic curvature: the case of a two-parameter ANNNI chain
Soumen Khatua, Anurag Sahay
This work examines the full scope of long-standing conjectures identifying the invariant thermodynamic curvature as the correlation volume and also as a measure of underl…
cond-mat.stat-mech2023
On the thermodynamic geometry of one-dimensional spin-3/2 lattice models
Riekshika Sanwari, Soumen Khatua, Anurag Sahay
Four-dimensional state space geometry is worked out for the exactly solved one-dimensional spin-3/2 lattice with a Blume-Emery-Griffiths (BEG) Hamiltonian as well as a more general…