Magnetization density
= Magnetization density
{title2=$m_z=\langle S^z_{\rm tot}\rangle/N$}
For a lattice <spin> system, <magnetization density> often means longitudinal <spin> per site, $\langle S^z_{\rm tot}\rangle/N$. A magnetic moment per physical volume instead includes the gyromagnetic conversion and lattice-site <number density>. The convention should be specified when comparing a spin-chain result with SI <magnetization>.