Thermoelectric response in two-dimensional Dirac systems: Role of particle-hole pairs

Thermoelectric response in two-dimensional Dirac systems: Role of particle-hole pairs

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Clean two-dimensional Dirac systems have received a great deal of attention for being a prime candidate to observe hydrodynamical transport behavior in interacting electronic systems.This is mostly invertatop squeeze bottle due to recent advances in the preparation of ultrapure samples with sufficiently strong interactions.In this paper we investigate the role of collective modes in the thermoelectric transport properties of edgewater shoes those systems.We find that dynamical particle-hole pairs, plasmons, make a sizable contribution to the thermal conductivity.

While the increase at the Dirac point is moderate, it becomes large towards larger doping.We suspect that this is a generic feature of ultraclean two-dimensional electronic systems, also applicable to degenerate systems.