Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Calculate the magnetic energies of Cu and Al

  1. Mar 5, 2012 #1
    Hi,
    The Question i am trying to solve is " Calculate the magnetic energies of Cu and Al in an applied field of 5mT at 0K."
    As far as i can find is that Cu is not a superconductor and Al is a superconductor and has a critical field of 15mT, which is higher than the applied applied field so it will act as super conductor and the formula for magnetic energy in Kittel is (Square(H))/ (2μ0). But how to find the magnetic energy of Cu.
     
  2. jcsd
  3. Mar 5, 2012 #2

    DrDu

    User Avatar
    Science Advisor

    Re: Superconductors

    I am wondering about the meaning of that question. In a superconductor there can be no magnetic field, so you can't calculate it's magnetic energy in that field.
     
  4. Mar 6, 2012 #3
    Re: Superconductors

    I am sorry i did not explain it. Consider it as a magnetic method of measuring stabilization free energy. Its in Kittel p.271 eighth edition.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook