Figure. 10
(a,c) Variations of the energy barrier (Eb) in the notch region for AFM and FM skyrmions with various skyrmion sizes Rsk in a racetrack memory notched with a fixed notch size of \({\mathbf{R}}_{{\varvec{n}}}\) \(=\) 18 nm and \({\mathbf{W}}_{{\varvec{n}}}=\) 50 nm. (b,d) Shrinkage of skyrmions (∆Rsk) along the notch width (\({\mathbf{W}}_{{\varvec{n}}}\)).
