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Ballistic conduction and Superconductivity

  1. May 28, 2015 #1
    Ballistic conduction occurs when the length of the conductor is smaller than the mean free path of the electron.

    Ballistic conduction differs from superconductivity due to the absence of the Meissner effect in the material. A ballistic conductor would stop conducting if the driving force is turned off, whereas in a superconductor current would continue to flow after the driving supply is disconnected.

    Can anyone elaborate it?
     
  2. jcsd
  3. May 29, 2015 #2
    I think it's a wrong forum. I'm re posting it at another forum.
     
  4. May 29, 2015 #3

    DrDu

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    Maybe the solid state forum would be better suited.
    But anyhow. Even in the balistic regime, you have residual resistance, so that some current in a current loop would decay.
    The Meissner effect means something different. If you cool a conductor, it will expell the magnetic field when it becomes superconducting while if it doesn't become superconducting, but only looses resistivity, it won't expell the magnetic field.
     
  5. May 29, 2015 #4
    thx! I'm re-posting it at Solid State forum.
     
  6. May 29, 2015 #5

    DrDu

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    Better use the "report" button and ask staff to move it!
     
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