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Stranger than metals

Journal Article · · Science
 [1];  [2];  [3]
  1. Department of Physics and Institute for Condensed Matter Theory, University of Illinois, Urbana, IL 61801, USA.
  2. H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, UK.; High Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and Materials, Radboud University, 6525 ED Nijmegen, Netherlands.
  3. Department of Physics, University of Illinois, Urbana, IL 61801, USA.

In traditional metals, the temperature (T) dependence of electrical resistivity vanishes at low or highT, albeit for different reasons. Here, we review a class of materials, known as “strange” metals, that can violate both of these principles. In strange metals, the change in slope of the resistivity as the mean free path drops below the lattice constant, or asT→ 0, can be imperceptible, suggesting continuity between the charge carriers at low and highT. We focus on transport and spectroscopic data on candidate strange metals in an effort to isolate and identify a unifying physical principle. Special attention is paid to quantum criticality, Planckian dissipation, Mottness, and whether a new gauge principle is needed to account for the nonlocal transport seen in these materials.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0021238
OSTI ID:
1980729
Journal Information:
Science, Vol. 377, Issue 6602; ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English

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