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In this work, we present a semi-analytical expression for the
temperature dependence of spin resolved dynamical density-density
response function of massless Dirac fermions within the Random
Phase Approximation. This result is crucial in order to describe
thermodynamic properties of the interacting systems. In
particular, we use it to make quantitative predictions for the
paramagnetic spin susceptibility of doped graphene sheets. We find
that, at low temperatures, the spin susceptibility behaves like as
$T^{-2}$ which is completely different from the temperature dependence of the magnetic susceptibility in undoped graphene sheets.
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