Nonstationary Dynamics of Vortex-Like Domain Walls in Magnetic Films with In-Plane Anisotropy
| Autor: | B. N. Filippov, M. N. Dubovik |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Condensed matter physics Dynamics (mechanics) Condensed Matter Physics 01 natural sciences Vortex Condensed Matter::Materials Science Magnetization In plane 0103 physical sciences Domain (ring theory) Materials Chemistry 010306 general physics Anisotropy Critical field Intensity (heat transfer) |
| Zdroj: | Physics of Metals and Metallography. 118:1192-1202 |
| ISSN: | 1555-6190 0031-918X |
| DOI: | 10.1134/s0031918x17120067 |
| Popis: | The dynamic rearrangement of the structure of vortex domain walls (DWs) in films with uniaxial in-plane anisotropy has been examined based on two-dimensional micromagnetic model simulation. The optimum computational region has been chosen; grids with up to 270 × 75 cells 3 nm in size have been used. The scenarios of dynamic rearrangement of the DW structure in strong fields (up to 450 Oe) and in films with thicknesses exceeding 100 nm have been revealed for the first time. The emergence of multivortex instantaneous distributions of magnetization upon an increase in the film thickness and the external field intensity have been established. The dependence of the critical field on the film thickness has been refined. |
| Databáze: | OpenAIRE |
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