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

Quantum Explanation of Magnets

  1. Mar 26, 2014 #1
    How can a magnet be explained based on quantum properties? This seems like an obvious thing, but I can't find it online.

    The best I can do on my own is that systems are at lower energy when the spins are aligned, so that's why magnets attract one another. The spin transfers angular momentum to remote charged particles, causing them to move in curved paths. But that's not right: there isn't any transfer because the angular momentum of the original particles remains unaffected. Or something like that.
     
  2. jcsd
  3. Mar 26, 2014 #2

    jtbell

    User Avatar

    Staff: Mentor

  4. Mar 29, 2014 #3
    Richard Feynman says that there is no more fundamental explanation for a layman.
     
  5. Mar 29, 2014 #4

    Bill_K

    User Avatar
    Science Advisor

    Associated with the spin of an electron is a magnetic dipole moment. As the article cited by jtbell says, interaction of the adjacent magnetic dipoles in some materials causes the spins to align, and a macroscopic magnetic field is produced.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Quantum Explanation of Magnets
  1. Magnetic Quantum no ? (Replies: 3)

Loading...