Charge-density-wave states in double-layer graphene structures at high magnetic field

Tőke, Csaba and Vladimir, I. Fal'ko (2014) Charge-density-wave states in double-layer graphene structures at high magnetic field. PHYSICAL REVIEW B, 90 (3). ISSN 2469-9950

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Abstract

We study the phases of correlated charge-density waves that form in a high magnetic field in two parallel graphene flakes separated by a thin insulator. The predicted phases include the square and hexagonal charge-density-wave bubbles, and a quasi-one-dimensional stripe phase. We find that the transition temperature for such phases is within the experimentally accessible range and that formation of interlayer-correlated states produces a negative compressibility contribution to the differential capacitance of this system.

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