Research Data Leeds Repository

Separation of heating and magnetoelastic coupling effects in surface-acoustic-wave-enhanced creep of magnetic domain walls

Citation

Shuai, Jintao and Hunt, Robbie G. and Cunningham, John and Moore, Thomas A. (2023) Separation of heating and magnetoelastic coupling effects in surface-acoustic-wave-enhanced creep of magnetic domain walls. University of Leeds. [Dataset] https://doi.org/10.5518/1336¹

Dataset description

Surface acoustic waves (SAWs) have significant potential for energy-efficient control of magnetic domain walls (DW) owing to the magnetoelastic coupling effect. However, the dissipation of radio frequency (RF) power in a SAW device can result in heating, which can also affect the DW motion. In this work, the heating of a SAW device consisting of a Pt/Co/Ta thin film with perpendicular magnetic anisotropy in between two interdigitated transducers was measured in-situ using an on-chip Pt film as a thermometer within the SAW beampath. The application of SAWs at a center frequency of 48 MHz and a total RF power of 21 dBm resulted in a temperature increase of approximately 10 K within the SAW beam path owing to RF power dissipation. DW velocity in a Pt/Co/Ta thin film was evaluated separately using Kerr microscopy at various temperatures or in the presence of SAWs. With a 10K increase in temperature only, the DW velocity was found to increase from 33±3 µm/s (at room temperature) to 104±8 µm/s under an external magnetic field of 65 Oe. Travelling SAW-assisted DW velocity (116±3 µm/s) is slightly higher than that with a 10 K temperature increase alone, suggesting that the heating plays the major role in promoting DW motion, whereas the DW motion is significantly enhanced (418±8 µm/s) in the presence of standing SAWs indicating that magnetoelastic coupling is more important than heating in this scenario.

Keywords:

Magnetism, Surface acoustic waves, Domain wall

Subjects:

F000 - Physical sciences > F300 - Physics²

Divisions:

Faculty of Engineering and Physical Sciences > School of Electronic and Electrical Engineering > Pollard Institute³
Faculty of Engineering and Physical Sciences > School of Physics and Astronomy⁴

Related resources:

Location	Type
https://doi.org/10.1103/PhysRevApplied.20.014002⁵	Publication
https://eprints.whiterose.ac.uk/199518/⁶	Publication
https://etheses.whiterose.ac.uk/33731/⁷	Ethesis

License:

Creative Commons Attribution 4.0 International (CC BY 4.0)

Date deposited:

07 Jul 2023 17:17

URI:

https://archive.researchdata.leeds.ac.uk/id/eprint/1129⁸

Additional details

Creators or authors:

Creators	ORCID	Primary affiliation	Primary affiliation ID	Primary affiliation ID type
Shuai, Jintao	https://orcid.org/0000-0002-6114-6711⁹	University of Leeds	https://ror.org/024mrxd33	ror
Hunt, Robbie G.	https://orcid.org/0000-0001-7350-3571¹⁰	University of Leeds	https://ror.org/024mrxd33	ror
Cunningham, John	https://orcid.org/0000-0002-1805-9743¹¹	University of Leeds	https://ror.org/024mrxd33	ror
Moore, Thomas A.	https://orcid.org/0000-0001-6443-2556¹²	University of Leeds	https://ror.org/024mrxd33	ror

Type of data:

Dataset

Research funders:

European Union, EPSRC

Grant numbers:

860060, EP/V004743/1, EP/V004743/1, EP/V047914/1

Publication date:

2023

Resource language:

English

Metadata language:

English

Publisher:

University of Leeds

Contact email:

T.A.Moore@leeds.ac.uk¹³

Last Modified:

02 Sep 2024 13:49

Files

Documentation

Readme_Shuai_2023.txt [1kB]

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Readme_Shuai_2023.txt [1kB]

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Data

Domain_Wall_Velocity [254MB]

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