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Orbital Zeeman effect: Signature of a massive spin wave mode in ferromagnetism

Paulo F. Farinas·Kevin S. Bedell
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Abstract

By deriving the quantum hydrodynamic equations for an isotropic single-band ferromagnet in an arbitrary magnetic field, we find that a massive mode recently predicted splits under the action of the field. The splitting is a peculiarity of charged fermions and is linear in the field to leading order in $q$ bearing resemblance to the Zeeman effect in this limit, and providing a clear signature for the experimental observation of this mode.

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Paulo F. Farinas, Kevin S. Bedell. 2002-02-14. Orbital Zeeman effect: Signature of a massive spin wave mode in ferromagnetism. https://doi.org/10.1080/1364281021000045805

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