Coexistence of antiferromagnetism and d+id superconducting correlations in the graphene bilayer

M. V. Milovanović and S. Predin
Phys. Rev. B 86, 195113 – Published 8 November 2012

Abstract

We discuss the t-J-U model on a honeycomb monolayer that has the same low-energy description of the kinetic term as the graphene bilayer, and in particular study coexistence of antiferromagnetism and superconducting correlations that originate from Cooper pairs without phase coherence. We show that the model is relevant for the description of the graphene bilayer and that the presence of the d+id superconducting correlations with antiferromagnetism can lead to quadratic dependence in small magnetic fields of the gap of the effective monolayer consistent with the transport measurements of Velasco et al. on the graphene bilayer.

  • Figure
  • Received 18 May 2012

DOI:https://doi.org/10.1103/PhysRevB.86.195113

©2012 American Physical Society

Authors & Affiliations

M. V. Milovanović1 and S. Predin2

  • 1Scientific Computing Laboratory, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11 080 Belgrade, Serbia
  • 2Department of Physics, University of Belgrade, P.O. Box 368, 11001 Belgrade, Serbia

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Issue

Vol. 86, Iss. 19 — 15 November 2012

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