TY  - JOUR
AU  - Hoffmann, Markus
AU  - Müller, Gideon P.
AU  - Blügel, Stefan
TI  - Atomistic Perspective of Long Lifetimes of Small Skyrmions at Room Temperature
JO  - Physical review letters
VL  - 124
IS  - 24
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2020-02646
SP  - 247201
PY  - 2020
AB  - The current development to employ magnetic skyrmions in novel spintronic device designs has led to a demand for room-temperature-stable skyrmions of ever smaller size. We present extensive studies on skyrmion stability in atomistic magnetic systems in two- and three-dimensional geometries. We show that for materials described by the same micromagnetic parameters, the variation of the atomistic exchange between different neighbors, the stacking order, and the number of layers of the atomic lattice can significantly influence the rate of the thermally activated decay of a skyrmion. These factors alone are important considerations, but we show that their combination can open up novel avenues of materials design in the search for sub-10 nm skyrmions, as their lifetime can be extended by several orders of magnitude.
LB  - PUB:(DE-HGF)16
C6  - pmid:32639835
UR  - <Go to ISI:>//WOS:000540386700008
DO  - DOI:10.1103/PhysRevLett.124.247201
UR  - https://juser.fz-juelich.de/record/878128
ER  -