Ganzhorn, K, Wimmer, T, Barker, J orcid.org/0000-0003-4843-5516 et al. (8 more authors) (2017) Non-local magnon transport in the compensated ferrimagnet GdIG. [Preprint - arXiv]
Abstract
We study the diffusive transport of magnons through the compensated ferrimagnetic insulator Gd3Fe5O12 (GdIG). The magnons are injected and detected electrically in a non-local measurement configuration via two parallel Pt strips deposited on top of the ferrimagnet. GdIG exhibits a rich magnon spectrum, with several thermally populated magnon bands at room temperature. We observe a strong temperature and field dependence of the non-local voltage in the detector strip. Just below the magnetization compensation temperature we find that the increasing magnetic field causes an unexpected enhancement of the non-local signal. A comparison with GdIG spin wave spectra obtained from atomistic modeling indicates that the thermal magnon population is important for understanding the non-local voltage signal.
Metadata
Item Type: | Preprint |
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Authors/Creators: |
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Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Oct 2024 14:35 |
Last Modified: | 30 Oct 2024 14:35 |
Identification Number: | 10.48550/arXiv.1705.0287 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:136770 |