Current-Driven Domain Wall Motion in Curved Ferrimagnetic Strips Above and Below the Angular Momentum Compensation
| Autor: | Osuna Ruiz, D., Alejos Ducal, Óscar, Raposo Funcia, Víctor Javier, Martínez, E. |
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| Rok vydání: | 2021 |
| Předmět: |
spintronics
domain walls Physics QC1-999 Materials Science (miscellaneous) Magnetism Biophysics General Physics and Astronomy spin-orbit coupling Condensed Matter::Materials Science Computational physics micromagnetics simulation 2202.08 Magnetismo Physical and Theoretical Chemistry ferrimagnetism Mathematical Physics |
| Zdroj: | Frontiers in Physics, Vol 9 (2021) GREDOS. Repositorio Institucional de la Universidad de Salamanca instname |
| ISSN: | 2296-424X |
| DOI: | 10.3389/fphy.2021.772264 |
| Popis: | [EN] Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spinorbit coupling phenomena. Domain wall velocity and characteristic relaxation times are studied as functions of the geometry, curvature and width of the strip, at and out of the angular momentum compensation. Results show that domain walls can propagate faster and without a significant distortion in such strips in contrast to their ferromagnetic counterparts. Using an artificial system based on a straight strip with an equivalent current density distribution, we can discern its influence on the wall terminal velocity, as part of a more general geometrical influence due to the curved shape. Curved and narrow ferrimagnetic strips are promising candidates for designing high speed and fast response spintronic circuitry based on current-driven domain wall motion. Projects SA114P20 and SA299P18 from Junta de Castilla y Leon (JCyL) MAT2017-87072-C4-1-P and PID2020-117024GB-C41 from the Ministry of Economy, Spanish government MAGNEFI, from the European Commission (European Union) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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