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Calculation of Magnon Drag Force Induced by an Electric Current in Ferromagnetic Metals by Funaki, Hiroshi; Tatara, Gen is a scholarly article available to read on EtoBox.

What is Calculation of Magnon Drag Force Induced by an Electric Current in Ferromagnetic Metals about?

Magnon drag effect induced by an applied electric field in ferromagnetic metals is theoretically studied by a microscopic calculation of the force on magnons arising from magnon emission/absorption and scattering due to driven electrons. It is shown that magnon scattering contribution dominates over the emission/absorption one in a wide temperature regime in good metals with long elastic lifetime $\taue$, as the latter has a relative suppression factor of $(\Deltasd\taue)^{-2}$ due to the electron spin flip by the magnon, where $\Deltasd$ is the $sd$ exchange interaction energy. Spin-transfer efficiency is discussed including the magnon drag effect.

Author

Funaki, Hiroshi; Tatara, Gen

Published

2022

Language

EN