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Spin current propagation through ultrathin insulating layers in multilayered ferromagnetic systems [dataset] Open Access

Spin current pumping from a ferromagnet through an insulating layer into a heavy metal was studied in a CoFeB/SiO2/Pt system in relation to the thickness and interfacial structure of the insulating layer. The propagation of spin current from the ferromagnet into the heavy metal falls rapidly with sub-nanometer thicknesses of SiO2 and is suppressed beyond a nominal thickness of 2 nm. Structural analysis shows that SiO2 only forms a complete barrier layer beyond around 2 nm, indicating that the presence of a discontinuous insulating barrier, and not tunneling or diffusion, explains the main observations of spin-pumping with thin insulating layers.

Descriptions

Resource type

Dataset

Contributors

Creator: Swindells, C. ¹
Contact person: Swindells, C. ¹
Data collector: Swindells, C. ¹
Data curator: Swindells, C. ¹
Editor: Swindells, C. ¹
Contact person: Hindmarch, A. T. ¹
Contact person: Gallant, A. J. ¹
Contact person: Atkinson, D. ¹

¹ Durham University, UK

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Keyword

Thin Film
Ferromagnetic Resonance
Spin Transport

Subject

Location

Language

Cited in

doi:10.1063/1.5119787

Identifier

ark:/32150/r2cf95jb46b

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

C.R. Swindells

Date Uploaded

30 September 2019, 08:09:57

Date Modified

31 January 2020, 13:01:43

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File format: zip (ZIP Format)

Mime type: application/zip

File size: 35475203

Last modified: 2019:09:30 09:55:12+01:00

Filename: Data.zip

Original checksum: b8cecb2b91ef6ff4ef6c858397fd17be