# Pre-Quantum Electrodynamics
Author: Jean-Sébastien Caux

##### Diamagnetism, Paramagnetism, Ferromagnetism
emsm.msm.m.dpf

{\bf Magnetization}: magnetic dipole moment per unit volume, denoted by \({\bf M}\).

\({\bf M}\) parallel to \({\bf B}\): {\bf paramagnets}
\({\bf M}\) antiparallel to \({\bf B}\): {\bf diamagnets}
\({\bf M} \neq 0\) even if \({\bf B} = 0\): {\bf ferromagnets}

###### Why is Ferromagnetism such an intriguing phenomenon?

Author: Jean-Sébastien Caux

Created: 2022-02-08 Tue 06:55

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