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Citation

Alshammari, Khulaif and Haltz, Eloi and Alyami, Mohammed and Ali, Mannan and Keatley, Paul S. and Marrows, Christopher H. and Barker, Joseph and Moore, Thomas A. (2021) Dataset associated with 'Scaling of Dzyaloshinskii-Moriya interaction with magnetization in Pt/Co(Fe)B/Ir multilayers'. University of Leeds. [Dataset] https://doi.org/10.5518/1071

Dataset description

Magnetic multilayers with perpendicular anisotropy and an interfacial Dzyaloshinskii-Moriya interaction contain chiral domain walls and skyrmions that are promising for applications. Here we measure the temperature dependence of the Dzyaloshinskii-Moriya interaction (DMI) in Pt/CoFeB/Ir and Pt/CoB/Ir multilayers by means of static domain imaging. First, the temperature dependences of saturation magnetization ($M_{\rm{S}}$), exchange stiffness ($A$) and intrinsic perpendicular anisotropy ($K_{\rm{u}}$) are determined. Then the demagnetized domain pattern in each multilayer is imaged by wide-field Kerr microscopy in the temperature range 9-290 K, and the characteristic domain period at each temperature is determined. We calculate the DMI constant $D$ from an analytical expression for the domain wall energy density that treats the multilayer as a uniform medium. Scaling laws for $K_{\rm{u}}$ and $D$ with the magnetization are established from the experiments. While the scaling of $K_{\rm{u}}$ is consistent with Callen-Callen theory, we find that the scaling of $D$ is similar to that of $A$ predicted theoretically ($\sim1.8$).

Subjects:	F000 - Physical sciences > F300 - Physics
Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.1103/PhysRevB.104.224402 Publication https://eprints.whiterose.ac.uk/180627/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	30 Nov 2021 12:51
URI:	https://archive.researchdata.leeds.ac.uk/id/eprint/907
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 Alshammari, Khulaif https://orcid.org/0000-0003-4653-6698 University of Leeds https://ror.org/024mrxd33 ror Haltz, Eloi https://orcid.org/0000-0001-7133-9800 Université Paris-Saclay https://ror.org/03xjwb503 ror Alyami, Mohammed https://orcid.org/0009-0006-5172-1889 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 Keatley, Paul S. https://orcid.org/0000-0002-7679-6418 University of Exeter https://ror.org/03yghzc09 ror Marrows, Christopher H. https://orcid.org/0000-0003-4812-6393 University of Leeds https://ror.org/024mrxd33 ror Barker, Joseph https://orcid.org/0000-0003-4843-5516 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: EPSRC, Royal Society, Jouf University Grant numbers: EP/T006803/1, EP/T034343/1, EP/R008809/1 Publication date: 2021 Resource language: English Metadata language: English Publisher: University of Leeds Contact email: T.A.Moore@leeds.ac.uk Last Modified: 03 Sep 2024 08:45

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