Pfeier, A, Reeve, R. M., Elphick, Kelvin et al. (2 more authors) (2021) Revealing the importance of interfaces for pure spin current transport. Physical Review Research. 023110. ISSN 2643-1564
Abstract
Spin transport phenomena underpin an extensive range of spintronic eects. In particular spin transport across interfaces occurs in most device concepts; but is so far poorly understood. As interface properties strongly impact spin transport, one needs to characterize and correlate them to the fabrication method. Here we investigate pure spin current transport across interfaces and connect this with imaging of the interfaces. We study the detection of pure spin currents via the inverse spin Hall eect in Pt and the related spin current absorption by Pt in Py-Cu-Pt lateral spin valves. Depending on the fabrication process to pattern the Cu bridge, we either determine a large (inverse) spin Hall eect signal and low spin absorption by Pt or vice versa. We explain these counter-intuitive results by the fabrication induced varying quality of the Cu/Pt interfaces, which is directly revealed via a special scanning electron microscopy technique for buried interface imaging.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2021, The Author(s). |
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 17 Jun 2021 11:50 |
Last Modified: | 27 Nov 2024 00:40 |
Published Version: | https://doi.org/10.1103/PhysRevResearch.3.023110 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevResearch.3.023110 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:175350 |