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Magnetic matter?

  1. Jan 9, 2008 #1
    magnetic matter??

    hi all
    how could we know that this magnetic matter is better than the other?
    what should be the structure inside a matter to have the best magnetic matter?
    maybe best magnetic matter is the ferromagnetic ??
  2. jcsd
  3. Jan 9, 2008 #2


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    Homework Helper

    ferromagnets are good magnets, elemental examples being iron, nickel, and cobalt.

    Samarium Cobalt makes a darn fine magnet:


    I guess the "best" kind depends on what you want the magnet for. More on magnets in a pretty good book called "Solid State Magnetism" by Crangle.
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