Local anisotropy control of Pt/Co/Ir thin film with perpendicular magnetic anisotropy by surface acoustic waves - dataset
Shuai, Jintao and Ali, Mannan and Lopez-Diaz, Luis and Cunningham, John E 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.
F000 - Physical sciences > F300 - Physics
Faculty of Engineering > School of Electronic and Electrical Engineering > Pollard Institute
Faculty of Mathematics and Physical Sciences > School of Physics and Astronomy
https://doi.org/10.1063/5.0097172 Publication
https://eprints.whiterose.ac.uk/188000/ Publication
Creative Commons Attribution 4.0 International (CC BY 4.0)
http://archive.researchdata.leeds.ac.uk/id/eprint/1001
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/024mrxd33 ror
Cunningham, John E 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:
Research funders:
EU Horizon 2020
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Metadata language:
T.A.Moore@leeds.ac.uk
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Introduction of the dataset
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Figure 1 [553kB]
Figure_1.zip
Diagram of the thin film, experiment set-up, and S-parameters
Figure 2 [1MB]
Figure 3 [120MB]