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arXiv · 2206.09687

Hydrodynamics of charged two-dimensional Dirac systems I: thermo-electric transport

Kitinan Pongsangangan·T. Ludwig·H. T. C. Stoof·Lars Fritz
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Abstract

In this paper we study thermo-electric transport in interacting two-dimensional Dirac-type systems using a phenomenological Boltzmann approach. We consider a setup that can accommodate electrons, holes, and collective modes. In the first part of the paper we consider the electron-hole hydrodynamics, a model that is popular in the context of graphene, and its transport properties. In a second part, we propose a novel type of hydrodynamics. In that setup, the `fluid' consists of electrons, holes, and plasmons. We study its transport properties, especially the thermo-electric behavior. The results of this part can also be adapted to the study of a fluid consisting of electrons and phonons. This paper is accompanied by a technical paper in which we give a detailed derivation of the Boltzmann equations and the encoded conservation laws.

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Kitinan Pongsangangan, T. Ludwig, H. T. C. Stoof, Lars Fritz. 2022-06-20. Hydrodynamics of charged two-dimensional Dirac systems I: thermo-electric transport. https://doi.org/10.1103/physrevb.106.205126

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