Thermodynamics of electron-hole liquids in graphene

Abstract

The impact of renormalization of the electron spectrum on the chemical potential, heat capacity, and oscillating magnetic moment is studied. The cases of low and high temperatures are considered. At low temperatures, doped graphene behaves as the usual Fermi liquids with the power temperature laws for thermodynamic properties. However, at high temperatures and relatively low carrier concentrations, it exhibits the collective electron-holes features: the chemical potential tends to its value in the undoped case going with the temperature to the charge neutrality point. Simultaneously, the electron contribution into the heat capacity tends to the constant value, as in the case of the Boltzmann statistics.

4 pages, 2 figures

References in corpus (3)

• The electronic properties of graphene
• Chirality and Correlations in Graphene
• Effect of electron-electron interactions on the conductivity of clean graphene

Cited by in corpus (6)

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• Magneto-oscillations on specific heat of graphene monolayer
• On the convergence of the polarization tensor in space-time of three dimensions
• Heat capacity of nonequilibrium electron-hole plasma in graphene layers and graphene~bilayers