The effect of the electron-electron interaction on the Lifshitz transition density in bilayer graphene

Csaba Toke; Vladimir I. Fal'ko

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arXiv · 0903.2435

The effect of the electron-electron interaction on the Lifshitz transition density in bilayer graphene

Csaba Toke·Vladimir I. Fal'ko

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Abstract

We study the renormalization of the effective mass and trigonal warping of bilayer graphene by the electron-electron interaction. One consequence of such a renormalization in the low-energy bands of a bilayer crystal consists of a small reduction of the critical density of the Lifshitz transition (the crossover between the single-pocket and four-pocket topology of the Fermi surface).

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Csaba Toke, Vladimir I. Fal'ko. 2009-03-13. The effect of the electron-electron interaction on the Lifshitz transition density in bilayer graphene. https://arxiv.org/abs/0903.2435

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