The dipoles interact weakly with each other in the absence of an external field.  
The Fermi distribution is used over the Curie relation in gauging this phenomenon in metals, resulting in a smaller susceptibility.  This phenomenon contributes an induced field that adds to the applied field, and the resulting alignment tends to compete with thermal motion, thereby randomizing the dipole orientations.  The dipoles interact weakly with each other in the absence of an external field.  Occurring in free radicals and transition-metal compounds, FTP, identify this type of magnetism occurring in all atoms with free electrons whose spin moments are aligned with an external magnetic field.
The Fermi distribution is used over the Curie relation in gauging this phenomenon in metals, resulting in a smaller susceptibility.  
paramagnetism