JETP Letters

, Volume 107, Issue 10, pp 651–654 | Cite as

Dirac Points, Spinons, and Spin Liquid in Twisted Bilayer Graphene

  • V. Yu. Irkhin
  • Yu. N. Skryabin
Condensed Matter


Twisted bilayer graphene is an excellent example of highly correlated system demonstrating a nearly flat electron band, the Mott transition and probably a spin liquid state. Besides the one-electron picture, analysis of Dirac points is performed in terms of spinon Fermi surface in the limit of strong correlations. Application of gauge field theory to describe deconfined spin liquid phase is treated. Topological quantum transitions, including those from small to large Fermi surface in the presence of van Hove singularities, are discussed.


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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.Mikheev Institute of Metal PhysicsRussian Academy of SciencesYekaterinburgRussia

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