||This article may be too technical for most readers to
understand. (May 2011)| Properties of magnetic materials change
with temperature. In physics and materials science, the Curie
temperature (Tc), or Curie point, is the temperature where a
material's permanent magnetism changes to induced magnetism, or
vice versa. The force of magnetism is determined by magnetic
moments. The Curie Temperature is the critical point where
intrinsic magnetic moments change directions. Magnetic moments
are permanent dipole moments within the atom which are made up
from electrons angular momentum and spin. Materials have
different structures of intrinsic magnetic moments that depend
on temperature. It is at a material's specific Curie Temperature
where they change directions. Permanent magnetism is from
aligned magnetic moments and induced magnetism is disordered
magnetic moments forced to align in a magnetic field. For
example, the ordered magnetic moments (ferromagnetic, figure 1)
change and become disordered (paramagnetic, f