Research Data Leeds Repository

Citation

Shuai, Jintao and Ali, Mannan and Lopez-Diaz, Luis and Cunningham, John and Moore, Thomas A. (2022) Local anisotropy control of Pt/Co/Ir thin film with perpendicular magnetic anisotropy by surface acoustic waves - dataset. University of Leeds. [Dataset] https://doi.org/10.5518/1169

Dataset description

The control of perpendicular magnetic anisotropy (PMA) in thin films by strain has considerable potential for energy-efficient information storage and data processing. Here, we report on the control of PMA in Pt/co/Ir thin films by the strain produced by standing surface acoustic waves (SAWs). A significant (~21%) coercivity reduction (from 4.80 +/- 0.03 to 3.80 +/- 0.02 mT) can be obtained by applying a standing SAW with a center frequency of 93.35 MHz. Furthermore, the standing SAWs induce a greater-than 11-fold increase in magnetization reversal speed (from 168 +/- 3 to up to 2100 +/- 80 square micrometers/s) at 3.2 mT for a total applied RF power of 22.5 dBm. During application of SAWs, wide-field Kerr microscopy reveals the formation of domains in stripes with a periodicity of half of the SAW wavelength. Micromagnetic simulations indicate that the anti-nodes of the standing SAW locally lower the anisotropy due to the magneto-elastic coupling effect, decreasing domain nucleation field while promoting magnetization reversal. Our study suggests the possibility of remote and energy-efficient control of magnetization switching using SAWs.

Subjects:	F000 - Physical sciences > F300 - Physics
Divisions:	Faculty of Engineering and Physical Sciences > School of Electronic and Electrical Engineering > Pollard Institute Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.1063/5.0097172 Publication https://eprints.whiterose.ac.uk/188000/ Publication https://etheses.whiterose.ac.uk/33731/ Ethesis
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	19 Jul 2022 16:31
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/1001
Additional details Additional details Creators or authors: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Shuai, Jintao https://orcid.org/0000-0002-6114-6711 University of Leeds https://ror.org/024mrxd33 ror Ali, Mannan https://orcid.org/0000-0002-7426-7731 University of Leeds https://ror.org/024mrxd33 ror Lopez-Diaz, Luis https://orcid.org/0000-0002-9773-1875 University of Salamanca https://ror.org/02f40zc51 ror Cunningham, John https://orcid.org/0000-0002-1805-9743 University of Leeds https://ror.org/024mrxd33 ror Moore, Thomas A. https://orcid.org/0000-0001-6443-2556 University of Leeds https://ror.org/024mrxd33 ror Type of data: Dataset Research funders: EU Horizon 2020 Grant numbers: 860060 Publication date: 2022 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: T.A.Moore@leeds.ac.uk Last Modified: 02 Sep 2024 13:46

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Documentation

Readme [2kB] Readme [2kB] Readme [2kB] Security: Anyone File name: readme.txt Content type: Documentation Description: Introduction of the dataset Mime-Type: text/plain License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 2kB

Data

Figure 1 [553kB] Figure 1 [553kB] Figure 1 [553kB] Security: Anyone File name: Figure_1.zip Content type: Data Description: Diagram of the thin film, experiment set-up, and S-parameters Mime-Type: application/zip License: Creative Commons Attribution 4.0 International (CC BY 4.0) File size: 553kB

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