Zeeman energy - Alchetron, The Free Social Encyclopedia

Zeeman energy, or the external field energy, is the potential energy of a magnetised body in an external magnetic field. It is named after the Dutch physicist Pieter Zeeman, primarily known by the Zeeman effect. In SI units, it is given by

E Z e e m a n = − μ 0 ∫ V M ⋅ H E x t d V

where H_Ext is the external field, M the local magnetisation, and the integral is done over the volume of the body. This is the statistical average (over a unit volume macroscopic sample) of a corresponding microscopic Hamiltonial (energy) for each individual magnetic moment m, which is however experiencing a local induction B:

H = − m ⋅ B

References

Zeeman energy Wikipedia

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