Electric potential energy

  1. my professor has explained Electric potential energy Law U=∫D*E above all the space. he said you can not use for some kind of materials. l can 't remember if they are Ferroelectricity or piezoelectric materials. then can you say to me the reason too? thank you
  2. jcsd
  3. There is a hysteresis effect in ferroelectric materials, too.
  4. but why couldn't l use for the ferroelectricity materials
  5. Meir Achuz

    Meir Achuz 2,076
    Science Advisor
    Homework Helper
    Gold Member

    The derivation of the D.E form requires that the relation between D and E be linear.
    It is not for ferroelectric materials.
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