| Pub. Date | : July, 2023 |
|---|---|
| Product Name | : The IUP Journal of Computer Sciences |
| Product Type | : Article |
| Product Code | : IJCS030723 |
| Author Name | : Mosiori Cliff Orori |
| Availability | : YES |
| Subject/Domain | : Management |
| Download Format | : PDF Format |
| No. of Pages | : 23 |
The demand for novel memory and logic devices has grown in recent days with technology advancement. Particular attention has been drawn to the use of skyrmions and antiskyrmions in memory access and storage. The findings in most recent laboratory observation at room temperature further encourage more studies. So far, some investigations have pointed on skyrmions for reservoir computing applications which in most applications require very large memory storages and fast access capabilities. It is only recently that material physicists proposed skyrmions for ultra-dense magnetic memories, though it has not been implemented. In this paper, we present the model, simulation and discuss the findings obtained by simulating a magnetic skyrmion model. The findings suggested that a magnetic skyrmion with antiskyrmion has a capacity to act as memory element. As a result, adopting them for memory applications can simplify the fabrication process of logic elements if their magnetic spin textures are taken into account. These findings form a promising pointer for future application of skyrmion and antiskyrmion.
Skyrmion is a quasi-particle physics concept used to describe unique computer memories and its related fields like spintronics. Specifically, a magnetic skyrmion is exhibited by helimagnetic materials (Xu et al., 2022a). These are materials whose spin swirling vortex-like texture (Lonsky and Hoffmann, 2022) constitutes spin moments, which can be analyzed in a two-dimensional sheet wrap. This is a topological view that can lead to very extraordinary metastabilities through a topological-driven motion (Amari et al., 2022), especially under the influence of very low electric-current excitations. Specifically, in a helimagnetic material (Cui et al., 2022), skyrmions show up as an isolated hexagonal crystal lattice form or as an independent quasi-particle. However, in true magnetic materials, they often occur in the form of a polar, chiral or a bilayered (Nembach et al., 2022) exhibiting antisymmetric spin exchange interaction of a magnetic nature. Thus, they take the forms of acentric magnets. A magnetic skyrmion, therefore, exhibits a magnetic non-collinear moment configuration (Shao
Dzyaloshinskii-Moriya interaction, Skyrmion, Antiskyrmion, The Landau-Lifshitz-Gilbert, MuMax,