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arXiv · 1802.05485

Electron drag in ferromagnetic structures separated by an insulating interface

V. I. Kozub·M. I. Muradov·Y. M. Galperin
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Abstract

We consider electron drag in a system of two ferromagnetic layers separated by an insulating interface. The source of it is expected to be magnon-electron interactions. Namely, we assume that the external voltage is applied to the "active" layer stimulating electric current through this layer. In its turn, the scattering of the current-carrying electrons by magnons leads to a magnon drag current within this layer. The 3-magnons interactions between magnons in the two layers (being of non-local nature) lead to magnon drag within the "passive" layer which, correspondingly, produce electron drag current via processes of magnon-electron scattering. We estimate the drag current and compare it to the phonon-induced one.

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V. I. Kozub, M. I. Muradov, Y. M. Galperin. 2018-02-15. Electron drag in ferromagnetic structures separated by an insulating interface. https://doi.org/10.1016/j.jmmm.2018.02.047

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