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Dataset associated with 'Scaling of Dzyaloshinskii-Moriya interaction with magnetization in Pt/Co(Fe)B/Ir multilayers'

Alshammari, Khulaif and Haltz, Eloi and Alyami, Mohammed and Ali, Mannan and Keatley, Paul and Marrows, Christopher H. and Barker, Joseph and Moore, Thomas (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:	http://archive.researchdata.leeds.ac.uk/id/eprint/907
Additional details Additional details Creators: 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 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 University Of Leeds https://ror.org/024mrxd33 Ali, Mannan https://orcid.org/0000-0002-7426-7731 University Of Leeds https://ror.org/024mrxd33 ROR Keatley, Paul https://orcid.org/0000-0002-7679-6418 University of Exeter https://ror.org/03yghzc09 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 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 Publisher: University of Leeds Contact Email Address: T.A.Moore@leeds.ac.uk Last Modified: 07 Feb 2022 14:01

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