Bibliographic Details
| Title: |
Effect of nanostructure layout on spin pumping phenomena in antiferromagnet/ nonmagnetic metal/ ferromagnet multilayered stacks |
| Authors: |
Kravets, A. F., Gomonay, Olena V., Polishchuk, D. M., Tykhonenko-Polishchuk, Yu. O., Polek, T. I., Tovstolytkin, A. I., Korenivski, V. |
| Publication Year: |
2016 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics |
| More Details: |
In this work we focus on magnetic relaxation in Mn$_{80}$Ir$_{20}$(12 nm)/ Cu(6 nm)/ Py($d_\mathrm{F}$) antiferromagnet/Cu/ferromagnet (AFM/Cu/FM) multilayers with different thickness of the ferromagnetic permalloy layer. An effective FM-AFM interaction mediated via the conduction electrons in the nonmagnetic Cu spacer -- the spin-pumping effect -- is detected as an increase in the linewidth of the ferromagnetic resonance (FMR) spectra and a shift of the resonant magnetic field. We further find experimentally that the spin-pumping-induced contribution to the linewidth is inversely proportional to the thickness of the Py layer. We show that this thickness dependence likely originates from the dissipative dynamics of the free and localized spins in the AFM layer. The results obtained could be used for tailoring the dissipative properties of spintronic devices incorporating antiferromagnetic layers.
Comment: Submitted as a conference paper to 2016 MMM Conference, to appear in AIP Advances |
| Document Type: |
Working Paper |
| Access URL: |
http://arxiv.org/abs/1611.02865 |
| Accession Number: |
edsarx.1611.02865 |
| Database: |
arXiv |
