Detection of spin- and valley-polarized states in van der Waals materials via thermoelectric and non-reciprocal transport

Abstract

We predict thermoelectric and current rectification effects in hybrid junctions formed by Ising superconductors and materials hosting valley-polarized states. Both effects originate from the interplay of intrinsic Ising spin-orbit coupling, spin-splitting from an exchange or Zeeman field, and valley polarization. The resulting transport signatures provide experimentally accessible probes of valley-polarized states in van der Waals heterostructures, such as junctions of few-layer transition metal dichalcogenides and twisted bilayer or rhombohedral graphene.

O. A. Awoga, P. Virtanen, T. T. Heikkilä, S. Ilić. Detection of spin-and valley-polarized states in van der Waals materials via thermoelectric and non-reciprocal transport. arXiv preprint arXiv:2604.02427 (2026). https://doi.org/10.48550/arXiv.2604.02427