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cond-mat.mes-hall2026
Quantum oscillation spectroscopy of Fermi-surface topologies in tetralayer graphene
Abhijit Halder, Harsh Varshney, Snehamoyee Hazra +7
Quantum oscillations offer a direct probe of Fermi-surface topology and electronic degeneracy, yet disentangling both simultaneously across the Lifshitz transitions of multiband sy…
cond-mat.mes-hall2026
Longitudinal Nonreciprocal Charge Transport with Time Reversal Symmetry
Harsh Varshney, Amit Agarwal
Longitudinal nonreciprocal charge transport is usually associated with broken time-reversal symmetry, either from magnetic order or an external magnetic field. Here, we show that i…
cond-mat.mes-hall2026
Asymmetric Scattering Drives Large Nonlinear Nernst and Seebeck Effects
Harsh Varshney, Amit Agarwal
The nonlinear Nernst and Seebeck effects (NNE and NSE) offer promising routes for thermoelectric energy conversion in non-magnetic systems. While intrinsic mechanisms such as the n…