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- Title
Robustness of topological Hall effect of nontrivial spin textures.
- Authors
Jalil, Mansoor B. A.; Seng Ghee Tan
- Abstract
We analyze the topological Hall conductivity (THC) of topologically nontrivial spin textures like magnetic vortices and skyrmions and investigate its possible application in the readback for magnetic memory based on those spin textures. Under adiabatic conditions, such spin textures would theoretically yield quantized THC values, which are related to topological invariants such as the winding number and polarity, and as such are insensitive to fluctuations and smooth deformations. However, in a practical setting, the finite size of spin texture elements and the influence of edges may cause them to deviate from their ideal configurations. We calculate the degree of robustness of the THC output in practical magnetic memories in the presence of edge and finite size effects.
- Subjects
HALL effect; SPHEROMAKS; SKYRMIONS; MAGNETIC memory (Computers); FINITE size scaling (Statistical physics)
- Publication
Scientific Reports, 2014, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep05123