We study the anomalous thermoelectric Hall response of two-dimensional massive Dirac fermions to first order in the electron-electron interaction. We compute both the Nernst response to a Luttinger-type gravitational potential and the particle magnetization, the latter being required to remove spurious non-transport contributions. We show that, for arbitrary interactions, the magnetization is described by a remarkably simple formula. Surprisingly, and contrary to expectations, subtracting the magnetization currents does not make the thermoelectric Hall coefficient vanish in the zero-temperature limit. We attribute this to violation of locality on the smallest length scales, which is inevitable in a quantized field theory, that happens to manifest itself in infrared physics.
@article{arxiv.2603.25705,
title = {Anomalous thermoelectric Hall response of interacting 2D Dirac fermions},
author = {A. Daria Dumitriu-I. and Feng Liu and Alexander E. Kazantsev and Alessandro Principi},
journal= {arXiv preprint arXiv:2603.25705},
year = {2026}
}