Strange metallicity in the doped Hubbard model

Huang, Edwin W.; Sheppard, Ryan; Moritz, Brian; Devereaux, Thomas P.

doi:10.1126/science.aau7063

Title: Strange metallicity in the doped Hubbard model

Abstract

Strange or bad metallic transport, defined by incompatibility with the conventional quasiparticle picture, is a theme common to many strongly correlated materials, including high-temperature superconductors. The Hubbard model represents a minimal starting point for modeling strongly correlated systems. Here we demonstrate strange metallic transport in the doped two-dimensional Hubbard model using determinantal quantum Monte Carlo calculations. Over a wide range of doping, we observe resistivities exceeding the Mott-Ioffe-Regel limit with linear temperature dependence. The temperatures of our calculations extend to as low as 1/40 of the noninteracting bandwidth, placing our findings in the degenerate regime relevant to experimental observations of strange metallicity. Our results provide a foundation for connecting theories of strange metals to models of strongly correlated materials.

Authors:

;

Publication Date:: 2019-11-21

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Energy Research Scientific Computing Center

OSTI Identifier:: 1575807

Alternate Identifier(s):: OSTI ID: 1596334

Grant/Contract Number:: AC02-76SF00515; AC02-05CH11231

Resource Type:: Published Article

Journal Name:: Science

Additional Journal Information:: Journal Name: Science Journal Volume: 366 Journal Issue: 6468; Journal ID: ISSN 0036-8075

Publisher:: AAAS

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Huang, Edwin W., Sheppard, Ryan, Moritz, Brian, and Devereaux, Thomas P. Strange metallicity in the doped Hubbard model.  United States: N. p., 2019. 
Web.  doi:10.1126/science.aau7063.

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                    Huang, Edwin W., Sheppard, Ryan, Moritz, Brian, & Devereaux, Thomas P. Strange metallicity in the doped Hubbard model.  United States.  https://doi.org/10.1126/science.aau7063

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                    Huang, Edwin W., Sheppard, Ryan, Moritz, Brian, and Devereaux, Thomas P. Thu .  
"Strange metallicity in the doped Hubbard model".  United States.  https://doi.org/10.1126/science.aau7063.

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@article{osti_1575807,

  title        = {Strange metallicity in the doped Hubbard model},

  author       = {Huang, Edwin W. and Sheppard, Ryan and Moritz, Brian and Devereaux, Thomas P.},

  abstractNote = {Strange or bad metallic transport, defined by incompatibility with the conventional quasiparticle picture, is a theme common to many strongly correlated materials, including high-temperature superconductors. The Hubbard model represents a minimal starting point for modeling strongly correlated systems. Here we demonstrate strange metallic transport in the doped two-dimensional Hubbard model using determinantal quantum Monte Carlo calculations. Over a wide range of doping, we observe resistivities exceeding the Mott-Ioffe-Regel limit with linear temperature dependence. The temperatures of our calculations extend to as low as 1/40 of the noninteracting bandwidth, placing our findings in the degenerate regime relevant to experimental observations of strange metallicity. Our results provide a foundation for connecting theories of strange metals to models of strongly correlated materials.},

  doi          = {10.1126/science.aau7063},

  journal      = {Science},

  number       = 6468,

  volume       = 366,

  place        = {United States},

  year         = {2019},

  month        = {11}

}

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