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Metal Superconductors and Negative Temperature

  1. Dec 30, 2014 #1
    What would happen to a metal superconductors taken below zero to a negative temperature? Would it loose its superconductivity?

  2. jcsd
  3. Dec 30, 2014 #2


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    Absolute T? You do understand that's not possible?
  4. Dec 30, 2014 #3
    "a system with a truly negative temperature in absolute terms on the Kelvin scale is hotter than any system with a positive temperature" http://en.wikipedia.org/wiki/Negative_temperature

  5. Dec 30, 2014 #4

    Vanadium 50

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    That article has a number of important points that you didn't mention:

    • In physics, certain systems can achieve negative temperature
    • Most familiar systems cannot achieve negative temperatures
    • Negative temperatures can only exist in a system where there are a limited number of energy states
    Superconductivity is not one of the listed, special systems, so you cannot reach negative temperature in a superconductor.
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