Current browse context:
cond-mat.mes-hall
Change to browse by:
References & Citations
Condensed Matter > Mesoscale and Nanoscale Physics
Title: No bulk thermal currents in massive Dirac fermions
(Submitted on 25 Apr 2024)
Abstract: We calculate the energy current flowing in the bulk of a (2+1)-dimensional system of massive Dirac fermions and along a (1+1)-dimensional domain wall generated by flipping the sign of the particle mass. We show that, at low temperatures and in the long-wavelenghth limit, the system does not support a bulk thermal Hall current proportional to the temperature gradient. The only such contribution is due to states localised at the domain wall. This puts an end to a controversy existing in the literature and amends previous results obtained via first-order perturbation calculations.
Link back to: arXiv, form interface, contact.