Electron drag in ferromagnetic structures separated by an insulating interface

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:456

Article

Kozub, V. I.¹  Muradov, M. I.¹  Galperin, Y. M.^1,2 

[1] Acad Sci, AF Ioffe Physicotech Inst Russian, St Petersburg 194021, Russia

[2] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

关键词: Electron drag;    Ferromagnetic structures;    Bilayers;   

DOI  :  10.1016/j.jmmm.2018.02.047

来源: Elsevier

【 摘 要 】

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. (C) 2018 Elsevier B.V. All rights reserved.

【 授权许可】

Free