magnetic octupole moment

magnetic octupole moment

[mag′ned·ik ¦äk·tə‚pōl ‚mō·mənt]
(electromagnetism)
A quantity characterizing a distribution of magnetization; obtained by integrating the product of the divergence of the magnetization, the third power of the distance from the origin, and a spherical harmonic Y *3m over the magnetization distribution.