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arXiv · 1101.2137

Magnon Pumping by a Time-Dependent Transverse Magnetic Field in Ferromagnetic Insulators

Kouki Nakata·Gen Tatara
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Abstract

The magnon pumping effect in ferromagnetic insulators under an external time-dependent transverse magnetic field is theoretically studied. Generation of a magnon current is discussed by calculating the magnon source term in the spin continuity equation. This term represents the non-conservation of magnons arising from an applied transverse magnetic field. The magnon source term has a resonance structure as a function of the angular frequency of the transverse field, and this fact is useful to enhance the pumping effect.

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Kouki Nakata, Gen Tatara. 2011-03-01. Magnon Pumping by a Time-Dependent Transverse Magnetic Field in Ferromagnetic Insulators. https://doi.org/10.1143/jpsj.80.054602

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