by Ciro Santilli (@cirosantilli, 25)
If you adda bit of impurities to certain materials, at low temperatures of a few Kelvin their resistivity actually starts increasing if you go below a certain critical temperature.
Figure 1. Kondo effect graph for gold with added impurities. Source.

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  1. Electrical resistivity and conductivity
  2. Condensed matter physics
  3. Physics
  4. Natural science
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