Fig. 7.

Graphene electronic heat. We show the dependence of the thermal coefficient β on E _F/k _B T, as calculated from Eq. (24). This parameter permits obtaining the electronic heat per unit of graphene area as $\beta {\left(k_{\mathrm{B}}T\right)}^3∕{\left(\hslash v_{\mathrm{F}}\right)}^2$ [Eq. (23)]. The inset shows β in linear scale