Home > Articles > Published articles > Survival of skyrmions along granular racetracks at room temperature |
Date: | 2023 |
Abstract: | Skyrmions can be envisioned as bits of information that can be transported along nanoracetracks. However, temperature, defects, and/or granularity can produce diffusion, pinning, and, in general, modification in their dynamics. These effects may cause undesired errors in information transport. We present simulations of a realistic system where both the (room) temperature and sample granularity are taken into account. Key feasibility magnitudes, such as the success probability of a skyrmion traveling a given distance along the racetrack, are calculated. The results are evaluated in terms of the eventual loss of skyrmions by pinning, destruction at the edges, or excessive delay due to granularity. The model proposed is based on the Fokker-Planck equation resulting from Thiele's rigid model for skyrmions. The results could serve to establish error detection criteria and, in general, to discern the dynamics of skyrmions in realistic situations. |
Grants: | Ministerio de Ciencia, Innovación y Universidades FPU17/01970 Agencia Estatal de Investigación PID2019-204670GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-105 |
Note: | Altres ajuts: acords transformatius de la UAB |
Rights: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
Language: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Published in: | Nanoscale advances, Vol. 5, Issue 18 (September 2023) , p. 4728-4734, ISSN 2516-0230 |
7 p, 1.1 MB |