Spin pumping as a generic probe for linear spin fluctuations: demonstration with ferromagnetic and antiferromagnetic orders, metallic and insulating electrical states
Materials Science
2019-01-14 v1
Abstract
We investigated spin injection by spin pumping from a spin-injector(NiFe) into a spin-sink to detect spin fluctuations in the spin-sink. By scanning the ordering-temperature of several magnetic transitions, we found that enhanced spin pumping due to spin fluctuations applies with several ordering states: ferromagnetic(Tb) and antiferromagnetic(NiO, NiFeOx, BiFeO3, exchange-biased and unbiased IrMn). Results also represent systematic experimental investigation supporting that the effect is independent of the metallic and insulating nature of the spin-sink, and is observed whether the spin current probe involves electronic or magnonic transport, facilitating advances in material characterization and engineering for spintronic applications.
Keywords
Cite
@article{arxiv.1901.03539,
title = {Spin pumping as a generic probe for linear spin fluctuations: demonstration with ferromagnetic and antiferromagnetic orders, metallic and insulating electrical states},
author = {O. Gladii and L. Frangou and G. Forestier and R. L. Seeger and S. Auffret and M. Rubio-Roy and R. Weil and A. Mougin and C. Gomez and W. Jahjah and J. -P. Jay and D. Dekadjevi and D. Spenato and S. Gambarelli and V. Baltz},
journal= {arXiv preprint arXiv:1901.03539},
year = {2019}
}