A nonlinear orbital Hall effect odd in the Néel vector unifies electrical readout of antiferromagnetic switching with orbital torque writing to ferromagnets via spin-orbit coupling.
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The quantum-metric-induced intrinsic longitudinal response vanishes identically because intrinsic currents are dissipationless, independent of band details and to all orders in nonlinearity.
C3-symmetric MOFs map via analytical downfolding to star- and honeycomb-lattice models whose gapped Dirac cones produce Berry-curvature hot spots that enable tunable nonlinear Hall transport through synthetic pathways.
Planar magnetotransport yields distinct quantum-geometric fingerprints of d-, g-, and i-wave altermagnetic order via magnetic-field-induced Berry curvature and quantum metric susceptibilities.
In a V-shaped 1D chain the nonmagnetic magnetoelectric response peaks near apex angle 0.6π because geometry induces an effective spin-orbit term whose angular factor sinθ sin(θ/2) matches Kubo-formula numerics.
Substrate-induced periodic dipolar scattering in 2D electron gases produces singular enhancement of nonlinear conductivity to a natural scale of 1 μm/ΩV due to strict 2D kinematic constraints.
Nonlinear thermal and thermoelectric responses are shown to encode quantum geometry and satisfy relations parallel to the Wiedemann-Franz and Mott laws in systems with broken symmetries.
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Giant nonlinear conductivity in 2D electron gas from substrate-induced dipolar scattering
Substrate-induced periodic dipolar scattering in 2D electron gases produces singular enhancement of nonlinear conductivity to a natural scale of 1 μm/ΩV due to strict 2D kinematic constraints.