We propose metal-organic frameworks (MOFs) as tunable platforms for nonlinear Hall responses. A universal analytical downfolding scheme maps C3-symmetric frameworks onto star- and honeycomb-lattice models, reproducing first-principles Dirac features. Spin-orbit coupling and broken inversion symmetry gap the Dirac cones, generating Berry-curvature hot spots. Symmetry analysis identifies tailored synthetic pathways, including linker design, as intrinsic routes to engineer nonlinear Hall transport beyond strain and substrate control.
@article{arxiv.2603.09612,
title = {Nonlinear Hall Effect in Metal-Organic Frameworks},
author = {Sarbajit Mazumdar and Jagadish N S and Awadhesh Narayan and Giorgio Sangiovanni and Ronny Thomale and Arka Bandyopadhyay},
journal= {arXiv preprint arXiv:2603.09612},
year = {2026}
}