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DC Hall measurements in the strongly correlated Hubbard model

ORAL

Abstract

We investigate the DC Hall conductivity, an indicator of charge carrier properties, of the single-band Hubbard model in the zero field limit[1] using determinant quantum Monte Carlo (DQMC). Utilizing an effective expansion to lowest order, we observe a change of sign in the Hall coefficient as a function of temperature and interaction strength, which may signal a change in the topology of the Fermi surface. We relate the Hall coefficient to the frequency dependent resistivity, also obtained from DQMC following analytic continuation, to reveal the properties of charge carriers within the strange metal phase of the Hubbard model.

[1] Auerbach, Assa. "Hall number of strongly correlated metals." Physical review letters 121.6 (2018): 066601.

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Presenters

  • Wen Wang

    Stanford University, Stanford Univ

Authors

  • Wen Wang

    Stanford University, Stanford Univ

  • Jixun Ding

    Stanford University, Stanford Univ

  • Brian John Moritz

    SLAC, Stanford University, Stanford Univ, Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, SIMES, SLAC

  • Edwin Huang

    University of Illinois Urbana-Champaign, University of Illinois at Urbana-Champaign, Department of Physics and Institute of Condensed Matter Theory, University of Illinois at Urbana-Champaign

  • Thomas Devereaux

    Stanford Univ, SLAC, Stanford, Stanford University, Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, SIMES, SLAC, SLAC