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

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 trans...

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Bibliographic Details
Published in:	Physical review. B, Condensed matter and materials physics Vol. 90; no. 3
Main Authors:	Toke, Csaba, Fal'ko, Vladimir I
Format:	Journal Article
Language:	English
Published:	07-07-2014
Subjects:	Accessibility Compressibility Condensed matter Graphene Insulators Magnetic fields Phases Transition temperature
Online Access:	Get full text
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Summary:	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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1098-0121 1550-235X
DOI:	10.1103/PhysRevB.90.035404