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Dataset associated with "Effect of annealing on the interfacial Dzyaloshinskii-Moriya interaction in Ta/CoFeB/MgO trilayers"

Khan, RA and Shepley, PM and Hrabec, Ales and Wells, AWJ and Ocker, B and Marrows, Christopher and Moore, TA (2016) Dataset associated with "Effect of annealing on the interfacial Dzyaloshinskii-Moriya interaction in Ta/CoFeB/MgO trilayers". University of Leeds. [Dataset] https://doi.org/10.5518/109

Dataset description

The interfacial Dzyaloshinskii-Moriya interaction (DMI) has been shown to stabilize homochiral Nèel-type domain walls in thin films with perpendicular magnetic anisotropy and as a result permit them to be propagated by a spin Hall torque. In this study, we demonstrate that in Ta/Co20Fe60B20/MgO the DMI may be influenced by annealing. We find that the DMI peaks at D=0.057 +/- 0.003 mJ/m2 at an annealing temperature of 230 DegC. DMI fields were measured using a purely field-driven creep regime domain expansion technique. The DMI field and the anisotropy field follow a similar trend as a function of annealing temperature. We infer that the behavior of the DMI and the anisotropy are related to interfacial crystal ordering and B expulsion out of the CoFeB layer as the annealing temperature is increased.

Keywords: Dzyaloshinskii-Moriya interaction DMI, magnetic domain walls, spintronics, nanomagnetism
Subjects: F000 - Physical sciences > F300 - Physics > F310 - Applied physics
Divisions: Faculty of Mathematics and Physical Sciences > School of Physics and Astronomy
Related resources:
LocationType
http://dx.doi.org/10.1063/1.4963731Publication
http://eprints.whiterose.ac.uk/105004/Publication
License: Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited: 30 Sep 2016 07:48
URI: http://archive.researchdata.leeds.ac.uk/id/eprint/83

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