Work

Coupled dynamical Boltzmann transport equations with long-range electron-phonon and electron-electron interactions in two-dimensional materials

Year: 2026

Type: article

Abstract: We study the interplay between long-range electron-phonon and electron-electron interactions in electrostatically doped two-dimensional semiconductors, including interlayer couplings in van der Waals heterostructures. We evaluate the effects of those interactions on transport properties by writing dynamically coupled Boltzmann equations for the electrons and for the electrodynamically active excitations. We develop a theory with a general validity, and apply it both to simplified parabolic models, and to the realistic BN-encapsulated graphene system which we present in an accompanying paper [arXiv:2604.00678]. We show that dynamical screening effects are of fundamental importance in order to correctly describe the electronic transport properties of two-dimensional materials, and in particular the scattering from polar phonons, whether those come from the semiconductor itself or the surrounding layers.

Source: Physical review. B./Physical review. B

DOI: 10.1103/9dt4-gzhn

Authors: Francesco Macheda, Thibault Sohier

Institutions: University of Modena and Reggio Emilia, Sapienza University of Rome, Centre National de la Recherche Scientifique, Laboratoire Charles Coulomb

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Université de Montpellier

OpenAlex ID: W7204455113

FWCI: 3.336

Cites: 97

Cited by: 3

Related to: 10