Domain Wall Motion in Magnetic Nanostrips
| Autor: | Victor Raposo, Oscar Alejos, Eduardo Martínez |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Physics Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Magnetic domain Spintronics FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Domain (software engineering) Magnetic field Coupling (physics) Domain wall (magnetism) Ferromagnetism Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Spin Hall effect Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Materials Science and Technology. :1-49 |
| DOI: | 10.1002/9783527603978.mst0459 |
| Popis: | Domain walls are the transition regions between two magnetic domains. These objects have been very relevant during the last decade, not only due to their intrinsic interest in the development of novel spintronics devices but also because of their fundamental interest. The study of domain wall has been linked to the research on novel spin-orbit coupling phenomena such as the Dzyaloshinskii-Moriya interaction and the spin Hall effect amount others. Domain walls can be nucleated in ferromagnetic nanostrips and can be driven by conventional magnetic fields and spin currents due to the injection of electrical pulses, which make them very promising for technological applications of recording and logic devices. In this review, based on full micromagnetic simulations supported by extended one-dimensional models, we describe the static and dynamic properties of domain walls in thin ferromagnetic and ferrimagnetic wires with perpendicular magnetic anisotropy. The present chapter aims to provide a fundamental theoretical description of the fundaments of domain walls, and the numerical tools and models which allow describing the DW dynamics in previous and future experimental setups. Updated and corrected Fig 29 indicates that adjacent DWs in HM/FiM at T=TA are efficiently driven by preserving their relative distance even when passing along curved parts. This also replaces Fig. 8 in "Current-driven domain wall dynamics in ferrimagnets: Micromagnetic approach and collective coordinates model". E Martinez at al. JMMM 491 (2019) |
| Databáze: | OpenAIRE |
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