Micromagnetic Study of Current Induced Domain Wall Motion for Spintronic Synapses
| Autor: | Petropoulos, Dimitrios-Petros |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
computational physics
micromagnetism micromagnetic simulations Mumax3 current induced domain wall motion domain wall driving spin current spin transfer torque synapse memristor Neuromorphic computing spintronic brain inspired computing Permalloy nanowire nanostrip notches Other Physics Topics Annan fysik |
| Druh dokumentu: | Text |
| Popis: | Neuromorphic computing applications could be made faster and more power efficient by emulating the function of a biological synapse. Non-conventional spintronic devices have been proposed that demonstrate synaptic behavior through domain wall (DW) driving. In this work, current induced domain wall motion has been studied through micromagnetic simulations. We investigate the synaptic behavior of a head to head domain wall driven by a spin polarized current in permalloy (Py) nanostrips with shape anisotropy, where triangular notches have been modeled to account for edge roughness and provide pinning sites for the domain wall. We seek optimal material parameters to keep the critical current density for driving the domain wall at order 1011 A/m2. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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