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Title: Strange metallicity in the doped Hubbard model

Journal Article · · Science
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]
  1. Stanford Univ., CA (United States); SLAC National Accelerator Lab. and Stanford Univ., Menlo Park, CA (United States)
  2. Stanford Univ., CA (United States)
  3. SLAC National Accelerator Lab. and Stanford Univ., Menlo Park, CA (United States)
  4. SLAC National Accelerator Lab. and Stanford Univ., Menlo Park, CA (United States); Stanford Univ., CA (United States)

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. Here, our results provide a foundation for connecting theories of strange metals to models of strongly correlated materials.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Energy Research Scientific Computing Center
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231
OSTI ID:
1575807
Alternate ID(s):
OSTI ID: 1596334
Journal Information:
Science, Vol. 366, Issue 6468; ISSN 0036-8075
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 63 works
Citation information provided by
Web of Science

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Parquetlike equations for the Hedin three-leg vertex journal December 2019