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arXiv · 1005.2156

Compressibility of bilayer graphene

Giovanni Borghi·Marco Polini·Reza Asgari·A. H. MacDonald
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Abstract

Bilayer graphene is a recently isolated and intriguing class of many-body systems with massive chiral quasiparticles. We present theoretical results for the electronic compressibility of bilayer graphene that are based on a four-band continuum band structure model combined with a random phase approximation treatment of electronic correlations. We find that the compressibility is strongly suppressed by electron-electron interactions at low carrier densities. Correlations do not lead to any qualitative new features, but are crucially important for a quantitative understanding of this fundamental thermodynamic property of graphene bilayers.

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Giovanni Borghi, Marco Polini, Reza Asgari, A. H. MacDonald. 2010-05-12. Compressibility of bilayer graphene. https://doi.org/10.1103/physrevb.82.155403

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