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Dataset associated with "Effect of annealing on the interfacial Dzyaloshinskii-Moriya interaction in Ta/CoFeB/MgO trilayers"
Citation
Khan, Risalat A. and Shepley, Philippa M. and Hrabec, Aleš and Wells, Adam and Ocker, Berthold and Marrows, Christopher H. and Moore, Thomas A. (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 | ||||||
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| Subjects: | F000 - Physical sciences > F300 - Physics > F310 - Applied physics | ||||||
| Divisions: | Faculty of Engineering and Physical Sciences > School of Physics and Astronomy | ||||||
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| License: | Creative Commons Attribution 4.0 International (CC BY 4.0) | ||||||
| Date deposited: | 30 Sep 2016 07:48 | ||||||
| URI: | https://archive.researchdata.leeds.ac.uk/id/eprint/83 | ||||||
Files
Documentation
Dataset description [888B]  |
Dataset description [888B] 
Dataset description [888B] Data
Figure 1 Bubble [70kB]  |
Figure 1 Line [166kB]  |
Fig1 MOKE 230C [21kB] |
Fig1 MOKE 250C [22kB] |
Fig1 MOKE 260C [21kB] |
Fig1 MOKE 270C [21kB] |
Fig1 MOKE 280C [21kB] |
Fig1 MOKE 300C [47kB] |
Fig1 MOKE as grown [23kB] |
Figure 2 +0 Oe [746kB]  |
Figure 2 +500 Oe [746kB]  |
Figure 2 Velocity Field 1 [876B] |
Figure 2 Velocity Field 2 [861B] |
Figure 3 DMI v Temperature [375B] |
Figure 4 Anisotropy v Temperature [186B] |