Quantum oscillations order in boson+fermion dimer models

ORAL

Abstract

We study the quantum oscillations for the cuprate superconductors in the underdoped pseudogap regime. We represent the system as a fermion+boson dimer model. We reduce the problem to an effective problem of free fermions hopping in an external field (which is not identical to a static magnetic field). We find the semiclassical equations of motion for these fermions. We find that the dimers undergo quantum oscillations in a strong magnetic field with the oscillation magnitude obeying the Lifshitz Kosevich formula.

*This work was supported in part by Engineering and Physical Sciences Research Council (EPSRC) Grants No. EP/G049394/1 (C.Ca.) and No. EP/M007065/1 (C.Ca. and G.G.), by DOE Grant DEF-06ER46316 (C.Ch.), and by the EPSRC Network Plus on Emergence and Physics far from Equilibrium.

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Presenters

  • Garry Goldstein

    • Cavendish Laboratory, Univ of Cambridge

Authors

  • Garry Goldstein

    • Cavendish Laboratory, Univ of Cambridge

  • Nigel Cooper

    • T.C.M. Group, Cavendish Laboratory
    • Cavendish Laboratory, Univ of Cambridge
    • T.C.M Group, Cavendish Laboratory, Cambridge University

  • Claudio Chamon

    • Boston University
    • Physics, Boston Universy
    • Physics, Boston University
    • Physics, Boston Univ
    • Physics Department, Boston University

  • Claudio Castelnovo

    • Cavendish Laboratory, Univ of Cambridge
    • University of Cambridge