Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis

By E. Martínez, S. Emori, N. Perez, L. Torres, G. Beach. 2014

157 citations recorded by the source corpus.

Current-induced domain wall motion along high perpendicular magnetocrystalline anisotropy multilayers is studied by means of full micromagnetic simulations and a one-dimensional model in the presence of in-plane fields. We consider domain wall motion driven by the spin Hall effect in the presence of the Dzyaloshinskii-Moriya interaction (DMI). In the case of relatively weak DMI, the wall propagates without significant tilting of the wall plane, and the full micromagnetic results are quantitatively reproduced by a simple rigid one-dimensional model. By contrast, significant wall-plane tilting is observed in the case of strong DMI, and a one-dimensional description including the wall tilting is required to qualitatively describe the micromagnetic results. However, in this strong-DMI case, the one-dimensional model exhibits significant quantitative discrepancies from the full micromagnetic results, in particular, when high longitudinal fields are applied in the direction of the internal domain wall magnetization. It is also shown that, even under thermal fluctuations and edge roughness, the domain wall develops a net tilting angle during its current-induced motion along samples with strong DMI.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/82470e4410a01569691a2e223549a61d31abc258

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Pietro Gambardella
2. J. Sinova
3. T. Jungwirth
4. A. Manchon
5. I. Miron
6. Kevin Garello
7. A. Thiaville
8. J. Železný

In Condensed Matter Physics

1. J. Sinova
2. T. Jungwirth
3. Pietro Gambardella
4. I. Miron
5. Kevin Garello
6. J. Železný
7. A. Thiaville
8. A. Manchon

In Electronic, Optical and Magnetic Materials

1. Pietro Gambardella
2. J. Sinova
3. A. Thiaville
4. I. Miron
5. T. Jungwirth

Citations in the corpus

• Interface-Induced Phenomena in Magnetism (2016, unknown): “[Martinez et al., 2014] contains a detailed micromagnetic and analytical study of current-driven domain wall motion in the presence of in-plane fields.”
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems (2018, background): “Because the DMI energy prefers that the DW magnetization is perpendicular to the DW, the DL SOT acting on the DW magnetization modifies the DW angle [see also Martinez et al. (2014)].”